JP2010042039A - Slot machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slot machine can strictly retain the impartiality of a game while arousing a player's eagerness to the game by varying a probability of reaching a special combination. <P>SOLUTION: When a winning combination other than a special winning combination is drawn by a winning combination lottery means 410 where a winning combination result storage means 420 retains a winning flag of a special winning combination set thereon, a regular-game stop control means 432 stops reels 40L, 40C and 40R so as to stationarily display a symbol combination corresponding to the winning combination other than the special winning combination. Thereby, for reaching the special winning combination, a failure should be drawn in the lottery combination, with the winning flag of the special winning combination set thereon, and a probability of the failure is varied by a winning combination probability control means 450 to control a probability of becoming a state of reaching the special winning combination. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a slot machine that determines a game result by a combination of symbols displayed when a player inserts a game medium, rotates a reel displaying symbols, and then stops the reel.

  In general, a player inserts a game medium such as a medal or a game ball, rotates a plurality of reels each displaying a plurality of symbols, and then stops the combination of symbols indicated to the player at that time. When a symbol combination corresponding to a predetermined combination is matched, a slot machine that pays out a predetermined number of game media when a combination corresponding to the combination is established is widely known as one of the gaming machines. . In this type of slot machine, when a player rotates a plurality of reels, one of a plurality of predetermined roles is won, or none is won ( The role lottery that determines whether or not) is performed internally. In addition, flags corresponding to each combination are set in advance, and if any combination is won as a result of the combination lottery, a flag corresponding to the selected combination is set. Then, when the player performs a reel stop operation, the state of the flag corresponding to each combination described above is referred to, so that the symbol combinations corresponding to the combination for which the flag is set are aligned on the active line. The reel stop control is performed so that the symbol combinations corresponding to the combination for which the flag is not set are not aligned on the effective line.

  In general, in addition to the role of paying out a predetermined number of game media (hereinafter referred to as a small role), the above-mentioned plurality of types of roles are given a privilege that a game can be played once again without inserting a game medium. And a special game that increases the probability of winning in a combination lottery of a combination in which a predetermined number of game media will be paid out until the predetermined end condition is satisfied from the next game. Special roles that are given the privilege are included. If any of the symbol combinations corresponding to the various combinations described above is aligned on the active line when the reels are stopped, the combination corresponding to the symbol combination is established, and the privilege set for the established combination Is given to the player. In addition, when one game is completed, the flag corresponding to each combination described above is basically reset. However, once the flag corresponding to the special combination is set, the special combination is established until the special combination is established. State is maintained. That is, when a special combination is won in the combination lottery, even if the player cannot stop and display the symbol combination corresponding to the special combination, a state in which the symbol combination can be stopped and displayed is maintained. become. Hereinafter, a gaming state in which a state in which the symbol combination corresponding to the special combination can be stopped and displayed is referred to as bonus carrying over.

  Conventionally, in this type of slot machine, a non-special game (hereinafter referred to as a general game) is provided with a game period called a so-called stock time. There is one that makes it very difficult to align the symbol combinations corresponding to the roles (see Patent Document 1). Then, during the stock time, the number of times that the special role was won in the role lottery is counted, and when the stock time is over, the number of special roles won during the stock time is consumed according to the conditions set as appropriate. The symbol combinations corresponding to the roles can be arranged. Here, in the slot machine disclosed in Patent Document 1, in order to make it difficult to align the symbol combinations corresponding to the special combination during the stock time, first, in the game carrying the bonus carry over, it is re-selected by the combination lottery. In the case of winning a game role or small role (in this case, either a re-game role or small role won in the role lottery and a special role being carried over) can be established) The reel stop control is performed so as to preferentially be established, and the winning probability of the re-gamer in the winning lottery is set to be extremely high. Thereby, it is made difficult to establish a special combination by performing reel stop control that makes a re-game combination win in almost every game and combination lottery and preferentially establishes the re-play combination.

  Further, in Patent Document 1, during the stock time, even if a re-game player is won by a lottery, a reel stop control is performed so that a re-game player is not established at a certain rate, so that the final re-game The establishment probability of the combination is made to coincide with the establishment probability of the re-game combination during a game period that is not in stock time (referred to as non-stock time). In other words, by making sure that the probability of establishing a re-gamer does not change between stock time and non-stock time, it is easy for the player not to realize that it is in stock time, and medals are consumed. It is set so that the rate does not drop too much.

JP 2005-245846 A

  By the way, in the slot machine disclosed in Patent Document 1, during the stock time, reel stop control is performed so that a re-gamer is not established even if a re-gamer is won by winning a lottery. Since the establishment probability is not different from that during the non-stock time, it is not necessarily a disadvantage of the player when playing the game. However, strictly speaking, the player cannot establish a re-gamer despite the conditions for establishing a re-gamer, including the timing of the stop switch operation by the player. In other words, there are aspects that are not fair games.

  The present invention has been made in view of the above problems, and by changing the probability that a special role can be established, the player's willingness to play is improved and the fairness of the game is strictly maintained. The purpose is to provide a slot machine that can.

  In order to solve the above-described problems, according to the present invention, when a plurality of predetermined game media are inserted, a plurality of reels each displaying a plurality of symbols can be rotated, and the plurality of reels rotate. After that, when the combination of symbols corresponding to any combination is displayed when the combination is stopped, the combination is established, processing corresponding to the combination is performed, and one game is completed. And after the plurality of game media are inserted, a game start instruction means for instructing the start of the game according to an operation from outside, and a rotation stop of the plurality of reels according to an operation from outside. In response to a start instruction from the game starting means, a reel stop instruction means for instructing, a special role for which a special game is started that has a higher probability of establishment in each game when established, and the game when established Medium A role lottery means for performing a role lottery to determine whether or not one of the multiple types of roles including a re-gamer who can play the next game without entering, is determined in advance. If the condition is satisfied, in the role lottery by the role lottery means, the re-playing role is won without changing the combined probability of the probability of winning the re-playing role and the probability of losing none of the multiple types of roles. A lottery result indicating whether or not a winning lottery probability changing means for changing a probability of winning a game player and a ratio of the probability of being lost, and whether or not a winner has been won depending on the result of the winning lottery A combination lottery result storage unit that stores information for each of the plurality of types of combinations, and after the plurality of reels are rotated in response to a start instruction from the game start instruction unit, a stop from the reel stop instruction unit According to the timing of the instruction, among the combination lottery result information stored in the combination lottery result storage unit, the plurality of reels are stopped so that a combination corresponding to the lottery result information indicating winning is established, Regardless of the change in the winning probability of the re-gamer by the winning lottery probability changing means, if the lottery result information corresponding to the re-gamer shows a win, the re-gamer is always established. The reel control means for stopping the plurality of reels, and the lottery result information of the roles other than the special role before the start of the next game after the end of the first game, from the contents indicating the winning The lottery result information for the special role is provided with a role lottery result update means for updating from the content indicating the winning to the content indicating the non-winning with the establishment of the special role. When the timing of the stop instruction from the reel stop instructing means is a timing at which the special combination can be established, the control unit determines the predetermined combination of the special combination and the combination other than the special combination according to the timing. In the combination lottery result storage means, the lottery result information of the special combination and the predetermined combination indicates a winning combination, and the timing of the stop instruction from the reel stop instruction unit is: When it is time to establish the special combination, the plurality of reels are stopped so that only the predetermined combination is established, only the lottery result information of the special combination indicates winning, and the reel When the timing of the stop instruction from the stop instructing means is a timing at which the special combination can be established, the special combination is established so that the special combination is established. Wherein the stopping number of the reel.

  In the slot machine according to the present invention, lottery result information corresponding to each part that is the target of the lottery is stored, and when a certain part is won in the part lottery, lottery result information corresponding to the winning part is displayed. Set to “Win”. Then, when the player operates the reel stop instruction means, the reel control means stops the plurality of reels so that the winning combination whose content of the lottery result information indicates “winning” is established. Here, the lottery result information corresponding to each role is cleared by the role lottery result updating means when the game corresponding to the role other than the special role is cleared when one game is completed (indicating “winning”). The lottery result information is updated to “non-winning”), once the lottery result information corresponding to the special role indicates “winning”, the content indicating “winning” is maintained until the special role is established. The As a result, when the special combination is won in the combination lottery, even if the player is unable to establish a special combination in the game, the reel control means is configured so that the special combination is established in subsequent games. Stop multiple reels.

  Also, in the games after winning the special role, a role lottery is performed for each game, and if any role is won in the role lottery, the lottery results corresponding to the special role and the role won in the role lottery The contents of the information are each “winning”. In this state, even if the player operates the stop instructing unit at a timing at which the symbol combination corresponding to the special combination can be stopped and displayed (that is, the special combination is established), the reel control unit performs the special combination. A plurality of reels are stopped so that a symbol combination corresponding to the winning combination other than is stopped and displayed. On the other hand, in the game after winning the special role, if the game is lost in the role lottery, only the lottery result information corresponding to the special role indicates “winning”, and the player corresponds to the special role. When the stop instructing means is operated at a timing at which the symbol combination can be stopped and displayed, the reel control means stops and displays the symbol combination corresponding to the special combination, the special combination is established, and the special game starts from the next game.

  In addition, in the game after winning the special role, the winning lottery probability changing means changes the ratio of the winning probability of the re-gamer and the probability of being lost in the winning lottery when a predetermined condition is satisfied. When the predetermined condition is satisfied and, for example, the probability of losing is high (when the winning probability of the re-gamer is low), the symbol combination corresponding to the special role can be stopped and displayed. The probability of becoming a state (the probability that only the lottery result information corresponding to the special combination will be the content indicating “winning”) becomes high. On the other hand, when the probability of losing is reduced (when the winning probability of the re-playing combination is high), the probability that the symbol combination corresponding to the special combination can be stopped and displayed is reduced. Furthermore, the reel control means is a reel stop control that always establishes a re-playing role if a re-playing role is won in the winning lottery regardless of the probability of losing in the winning lottery, i.e., the change in the winning probability of the re-playing role. I do.

  According to the above slot machine, when a predetermined condition is satisfied, the probability of losing fluctuates, thereby changing the probability that a special role can be established. It is possible to generate a state where it is easy to establish a special role and a state where it is difficult to establish a special role, and to provide a player with a sharp game, and to improve the player's willingness to play. It becomes. Further, regardless of the change in the winning probability of the re-gamer in the role lottery, if the re-gamer is won in the role lottery, the re-gamer is always established, so that a very fair game can be provided.

  Further, according to the present invention, in the above slot machine, the predetermined combination includes a specific small combination that pays out a predetermined number of the game media when established, and the combination lottery means Is characterized in that the special combination and the specific small combination are won with a predetermined probability in one combination drawing.

  In the slot machine according to the present invention, when the timing of the stop instruction from the stop instructing means is a timing at which a special combination can be established, a specific small role is defined as a predetermined combination other than the special combination that can be established. The combination includes a combination, and the combination lottery means wins the special combination and the specific small combination in a single combination lottery with a predetermined probability. In other words, when a special role is won in the role lottery, a specific small role is also won at the same time, so even if the stop instruction means is operated at a timing at which the special role can be established in the game where the special role is won A specific small role will be established. Thereby, for example, even when the winning probability of the special role in the role lottery is set high, the probability of establishment of the special role is controlled by the fluctuation of the probability of being lost in the role lottery after the game in which the special role is won. be able to.

  Further, according to the present invention, the number of game media to be paid out when the specific small combination is established is smaller than the number of game media inserted in which the plurality of reels can rotate, and the predetermined lottery in the combination lottery The winning combination probability is higher than the probability that the predetermined combination is not won.

  In the slot machine according to the present invention, the number of game media to be paid out when the specific small role described above is established is set to be smaller than the number of game media input required for playing a game, and in the lottery, The probability that the given winning combination is won is higher than the probability that the predetermined combination is not won. Therefore, since the number of game media to be paid out does not exceed the number of game media to be thrown in only by the establishment of a specific small role, a specific lottery in a role lottery can be achieved without excessively irritating the player. It is possible to increase the probability that a small role and a special role will be won at the same time, so that the content of the lottery result information of the special role indicates “winning”. As a result, the probability that a special combination can be established can be made closer to the probability that a combination will be lost. In addition, even if the content of the lottery result information of the special role is made easy to indicate “winning”, the probability that the above-mentioned predetermined role is not won (the probability that the special role can be established) is won. Therefore, it is possible to avoid the special role from being easily established and increasing the player's joyfulness.

  Further, according to the present invention, the predetermined condition is determined in advance by performing a predetermined number of games in which the probability of a loss in the combination lottery means is the current number of times, and in the combination lottery by the combination lottery means. The winning combination is displayed, or a predetermined symbol combination is displayed when the plurality of reels are stopped, or a combination thereof, and the winning lottery probability changing means, When the predetermined condition is satisfied, the probability that the winning lottery means loses is changed.

  In the slot machine according to the present invention, the condition for changing the probability of losing is that the game has been performed a predetermined number of times under the current probability of losing, and the role that has been determined in advance by lottery is selected. Or a combination of symbols displayed in advance when a plurality of reels are stopped, or a combination thereof. Therefore, by appropriately setting these conditions, it is possible to change the probability that a special role can be established, thereby making it difficult to reduce the player's willingness to play and the player's joyfulness. It is possible to provide a game that does not excessively hit the game.

  In the present invention, a plurality of types of the predetermined conditions are determined in advance, and the combination lottery means performs a plurality of types of combination lotteries with different probabilities of being lost, If any one of the predetermined types of predetermined conditions is satisfied, the determined predetermined condition and the type of the lottery currently performed by the winning lottery means Based on this, the type of lottery to be executed is determined from the next game, and the determined part lottery is executed by the above-mentioned part lottery means.

  In the slot machine according to the present invention, a plurality of types of “conditions for changing the probability of losing” are determined in advance, and the role lottery means is configured to perform a plurality of types of lottery with different probabilities of losing. ing. Then, when any one of a plurality of types of “conditions for changing the probability of losing” is established, the above condition is established according to the established condition and the current type of lottery. The type of lottery to be executed from the next game of the game is determined. In addition, the combination lottery means executes the combination lottery of the type determined by the combination lottery probability varying means from the next game. As a result, a plurality of game states having different probabilities that a special combination can be established can be provided, so that it is possible to provide a game that is hard to be bored by the player. In addition, taking into account the current gaming situation, the probability of being able to establish a special role can be changed, so that the player's willingness to play is not impaired and the player's eagerness is remarkably increased. A game without fear can be provided.

  Further, according to the present invention, the plurality of types of predetermined conditions include that a predetermined number of games are performed with the current probability of being lost in the combination lottery means, It includes that a predetermined combination is won and that a predetermined symbol combination is displayed when the plurality of reels are stopped.

  In the slot machine according to the present invention, as a condition for changing the probability of becoming a plurality of types of loss described above, a predetermined number of games have been performed under the current probability of being lost, This includes that a predetermined combination is won and that a predetermined symbol combination is displayed when a plurality of reels are stopped. Therefore, by changing the probability that a special role can be established based on these conditions, it is difficult to reduce the player's willingness to play, and excessively increases the player's gambling It is possible to provide a game without any problems.

  As described above, according to the slot machine of the present invention, the fairness of the game can be strictly maintained while improving the player's willingness to play by changing the probability that the special combination can be established.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
An appearance of the slot machine 10 according to the present embodiment is shown in FIG. FIG. 1 is a front view of the slot machine 10. In the figure, an upper panel 20 is provided at the upper part of the casing of the slot machine 10. A display window 22 for displaying symbols printed on the outer peripheral surfaces of the three reels 40L, 40C, and 40R that are rotatably provided inside the slot machine 10 is formed at substantially the center of the front panel 20. Has been. The reels 40L, 40C and 40R are arranged side by side in the horizontal direction in FIG. 1, each having a ring shape, and a strip-shaped reel tape on which 13 symbols are printed at equal intervals is attached to the outer peripheral surface. It is attached. From the display window 22, when the reels 40L, 40C, and 40R are stopped, one of the 13 symbols printed on each reel is visible. Therefore, the display window 22 stops and displays a total of three symbols, one for each reel. As will be described in detail later, when the reels 40L, 40C, and 40R rotate and stop, the combination of the three symbols that are stopped and displayed on the display window 22 corresponds to one of the roles. Is established.

  A display device 25 composed of a liquid crystal display panel is provided on the lower side of the upper panel 20, and an effect image corresponding to a result of a lottery to be described later, a game progress (medal) is displayed on the screen of the display device 25. (Insertion → Start Switch Operation → Reel Rotation → Stop Switch Operation → All Reel Rotation Stop) An effect image display area GE for displaying an effect image, etc., and a game credited (stored) in the slot machine 10 Number of media (number of credits) Number of game media thrown into one game, number of game media paid out to a player as a result of playing a game in the slot machine 10, paid out during a special game A game information display area GS for displaying the number of game media and the like is set in advance. Note that the display device 25 is not limited to the above-described liquid crystal display panel, and any other image display device can be used as long as the player can visually recognize image information and text information during the game. Further, in place of the display device 25, a plurality of effect mechanical reels (hereinafter referred to as effect reels) on which a plurality of types of symbols are printed are provided, and various types of information displayed in the game information display area GS described above. A display for displaying information (for example, a 7-segment display, LED, lamp, etc.) may be provided separately. In this case, after the effect reel is rotated in accordance with the progress of the game described above, the symbol is stopped and displayed as appropriate, and the effect is as if the combination has been achieved by the combination of symbols stopped and displayed on the effect reel. May be performed.

  A substantially horizontal operation panel unit 30 is provided below the display device 25. A medal slot 32 through which a medal used as a game medium in the slot machine 10 can be inserted is provided on the upper right side of the operation panel 30. A medal counter (not shown) is provided inside the medal slot 32 and counts the number of medals inserted from the medal slot 32. Note that the game medium is not limited to a medal, and for example, a game ball used in a pachinko machine or the like may be used. Further, a 1-bet switch 34 and a maximum bet switch 35 that can insert credited medals into the slot machine 10 are provided on the upper left side of the operation panel unit 30. Here, the 1-bet switch 34 is a switch for inserting only one of the medals credited every time it is operated into the slot machine 10 as a game betting target. The maximum bet switch 35 is a switch for inserting three of the credited medals into the slot machine 10 as a game betting target. In the slot machine 10, one game can be performed by inserting three medals.

  When the medals are inserted by operating the various bet switches 34 and 35, the number of inserted medals is subtracted from the number of credits stored in the RAM 110, which will be described later, and accordingly, the game information of the display device 25 is displayed. The value of the number of credits displayed in the display area GS is also subtracted. Further, when a medal is inserted from the medal slot 32 with three medals already inserted, the number of inserted medals is added to the number of credits stored in the RAM 110. The credit number displayed in the game information display area GS of the display device 25 is added to the value.

  A start switch 36 is tiltably provided on the left side of the front surface of the operation panel unit 30. When the player inserts three medals into the slot machine 10 and then tilts the start switch 36, the three reels 40L, 40C and 40R described above start to rotate at the same time, and the reels 40L, 40C and 40R. The symbols printed on the outer peripheral surfaces are moved and displayed on the display window 22 from the top to the bottom. Three stop switches 37L, 37C, and 37R are provided in the center of the front surface of the operation panel 30. Here, the left stop switch 37L corresponds to the left reel 40L, the middle stop switch 37C corresponds to the middle reel 40C, and the right stop switch 37R corresponds to the right reel 40R. The stop switches 37L, 37C, and 37R are operated by the player when the rotational speeds of the three reels 40L, 40C, and 40R reach a constant speed. When the player pushes the left stop switch 37L, the left reel 40L stops. When the middle stop switch 37C is pushed, the middle reel 40C stops and the right stop switch 37R is pushed. Sometimes the right reel 40R stops. At this time, among the 13 symbols drawn on the three reels 40L, 40C, and 40R, any one of the symbols matches the center position thereof with the center position in the vertical direction of the display window 22. Stop control of the reels 40L, 40C, and 40R is performed so as to be stopped and displayed (hereinafter referred to as “fixed position”).

  A lower panel 50 on which a model name of the slot machine 10 and characters used as a game motif are drawn is disposed below the operation panel 30. Furthermore, when the reels 40L, 40C, and 40R are stopped at the lower center of the lower panel 50, the combination of symbols stopped and displayed in the display window 22 pays out a predetermined number of medals. When it corresponds to a combination (hereinafter referred to as a small combination), the number of medals associated with the small combination is paid out from the medal payout opening 60 and discharged to the tray 61. Further, sound transmission holes 62R and 62L are provided on the right side and the left side of the medal payout opening 60, respectively, for outputting sounds emitted from speakers 64R and 64L (described later) housed in the slot machine 10 to the outside. It has been. Further, an upper effect lamp 70 is provided above the upper panel 20 described above. When the reels 40L, 40C, and 40R are stopped and any combination is established, the upper effect lamp 70 blinks according to the established combination.

  Next, with reference to FIG. 2, the arrangement of symbols printed on the reel tape attached to the outer peripheral surfaces of the reels 40L, 40C and 40R will be described. As described above, 13 symbols are printed on the outer peripheral surfaces of the reels 40L, 40C, and 40R. These symbols are composed of six types of symbols A, B, C, D, E, and F. Each reel has two types of symbols (“A” and “B” for the left reel 40L, “C” and “D” for the middle reel 40C, and “E” and “F” for the right reel 40R. ) Are alternately arranged, the total number of symbol combinations that can be displayed on the display window 22 is 2 to the third power (eight). Here, alphabets “A” to “F” merely indicate the types of symbols, and do not indicate actual symbols. On the reel tape attached to each of the reels 40L, 40C, and 40R, these six kinds of symbols are alternately printed at equal intervals on each reel, as shown in FIG. A unique number (hereinafter referred to as a symbol number) is assigned in advance. When such a reel tape is attached to the outer peripheral surfaces of the corresponding reels 40L, 40C and 40R, the symbols of symbol number 13 and symbol number 1 are continuous in each symbol arrangement shown in FIG. When the reels 40L, 40C, and 40R are rotated, the symbols of each reel displayed in the display window 22 are moved and displayed in the direction in which the value of the symbol number increases. For example, when the symbol number 1 is displayed on the reel display window 22, the symbol number 1 → 2 → 3 → …… → 12 → 13 → 1 → 2 →...

<Description of control circuit>
A control circuit that controls the slot machine 10 includes a main control circuit 100 and a sub control circuit 200. Here, a block diagram of the main control circuit 100 is shown in FIG. 3, and a block diagram of the sub-control circuit 200 electrically connected thereto is shown in FIG. 3 and 4, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted. The start switch 36 shown in FIG. 1 is connected to the interface circuit 102 of the main control circuit 100, and the interface circuit 102 is connected to the input / output bus 104. The reel rotation start signal generated from the start switch 36 is converted into a desired signal by the interface circuit 102 and then supplied to the input / output bus 104. The input / output bus 104 is configured to input / output data signals or address signals to / from a central processing circuit (hereinafter referred to as CPU) 106. The reel rotation start signal described above constitutes one of “operation signals”. Further, stop switches 37L, 37C and 37R, a 1-bet switch 34 and a maximum bet switch 35 are also connected to the interface circuit 102 described above. Signals generated from these buttons and switches are also supplied to the interface circuit 102, converted into desired signals, and then supplied to the input / output bus 104. A signal emitted from the stop switch 37L, 37C or 37R described above also constitutes an operation signal. In addition, a connection line 118 is also connected to the interface circuit 102, and the main control circuit 100 is electrically connected to a sub-control circuit 200 described later via the connection line 118.

  A ROM (read only memory) 108 and a RAM (random access memory) 110 are also connected to the input / output bus 104 described above. The ROM 108 stores a control program for controlling the entire flow of the slot machine and initial data for executing the control program. For example, in addition to various combination lottery tables shown in FIGS. 6 to 8, which will be described later, symbol combinations corresponding to various combinations shown in FIG. Data such as a reel stop control table is stored. The RAM 110 stores various flags used in the control program described above (for example, winning flags corresponding to various roles to be described later, re-game establishment flags, etc.) and values of various variables (values of symbol numbers displayed on the display window 22, It is possible to temporarily store a specified number of games for each RT described later. The RAM 110 also stores game state information indicating the game state in the current slot machine 10. There are three types of gaming states of the slot machine 10: general gaming, MBa, and MBb. In the general gaming state, there are six types of RT states: RT0 (non-RT), RT1, RT2, RT3, RT4, RT5. Exists. In the RAM 110, information indicating the current gaming state and information indicating which of RT0 to RT5 is stored as gaming state information. The features of each RT will be described in detail later.

  A random number generator 112 for generating random numbers is also connected to the input / output bus 104. The random number generator 112 generates a random number (integer) within a certain range of numerical values, for example, in the range of 0 to 65535 (2 to the 16th power). Note that a random number may be generated by the arithmetic processing of the CPU 106. A motor drive circuit 114 is connected to the input / output bus 104. The motor driving circuit 114 is connected to stepping motors 80L, 80C, and 80R that rotationally drive each of the three reels 40L, 40C, and 40R. Each of the stepping motors 80L, 80C, 80R is provided on the inner peripheral side of the three reels 40L, 40C, 40R, and the rotation centers of the reels 40L, 40C, 40R are attached to the rotation shafts of the stepping motors 80L, 80C, 80R. ing.

  The drive control command issued from the CPU 106 is converted into a drive signal by the motor drive circuit 114, and the drive signal is supplied to the stepping motors 80L, 80C and 80R. The drive control command includes a rotation speed command, and performs rotation control and stop control of the stepping motors 80L, 80C, and 80R, and also performs rotation speed control. As described above, the CPU 106 controls the rotation and stop of the reels 40L, 40C, and 40R and controls the rotation speed by controlling the stepping motors 80L, 80C, and 80R. Each of the reels 40L, 40C, and 40R is provided with a rotation angle position sensor (not shown) for detecting the rotation angle position of each reel. The rotation angle position sensor is a reel rotation angle position detection circuit 116. It is connected to the. When a signal indicating the rotation angle position of each of the reels 40L, 40C, and 40R is generated from the rotation angle position sensor, the signal is supplied to the reel rotation angle position detection circuit 116, converted into a predetermined signal, and then input / output bus 104. To be supplied. Then, the CPU 106 calculates a symbol number from the supplied rotation angle position, and specifies the symbol of each reel displayed on the display window 22.

  Next, a block diagram showing the configuration of the sub-control circuit 200 is shown in FIG. The connection line 118 described above is connected to the interface circuit 202 connected to the input / output bus 204 of the sub control circuit 200. Various information transmitted from the main control circuit 100 to the sub control circuit 200 is converted into a desired signal by the interface circuit 202, supplied to the input / output bus 204, and stored in the RAM 210. The input / output bus 204 is configured to input / output data signals or address signals to / from the CPU 206. The input / output bus 204 is also connected with a ROM 208, a RAM 210, a lamp driving circuit 218, a display driving circuit 220, and a speaker driving circuit 222.

  The ROM 208 stores a control program for controlling the lamp driving circuit 218, the display driving device 220, and the speaker driving circuit 222, and initial data for executing the control program. The ROM 208 also stores various image data to be displayed on the display device 25, performance sound data to be emitted from the speakers 64L and 64R, pattern data for blinking the upper effect lamp 70, and the like. In addition, in the RAM 210, in addition to various data generated in the process of executing the above-described control program, as a result of the role lottery transmitted from the main control circuit 100, the current gaming state and the payout to the player Information such as the number of medals is also stored.

  The lamp drive circuit 218 drives the upper effect lamp 70 to light according to a drive command output from the CPU 206 based on various information signals supplied from the main control circuit 100. In addition, the display drive device 220 causes the display device 25 to display image data, character data, and the like read from the ROM 208 by the CPU 206 based on the information signal supplied from the main control circuit 100. Thereby, on the display device 25, the image data is displayed as an effect screen, or the character data is displayed as a message. The speaker drive circuit 222 drives the speakers 64R and 64L according to the audio data read from the ROM 208 by the CPU 206 based on the information signal supplied from the main control circuit 100, and the sound transmission holes 62R and 62L shown in FIG. Sound is output from 62L.

(Explanation of functional block diagram)
Next, a functional block diagram of the control circuit of the slot machine 10 is shown in FIG. As a control circuit, the main control circuit 100 and the sub control circuit 200 are electrically connected, and the operation means 300 is electrically connected to the main control circuit 100, and is provided in each of the reels 40L, 40C, and 40R. The motors 80L, 80C, 80R are electrically connected. The sub-control circuit 200 is electrically connected to the notification means 600 including the speakers 64L and 64R, the display device 25, and the upper effect lamp 70. The operation unit 300 includes a game start instruction unit 310 including a start switch 36, a reel stop instruction unit 320 including three stop switches 37L, 37C and 37R, and bet switches 34 and 35. The operation means 300 is not limited to a switch, and any means can be applied as long as it generates an operation signal based on an operation using the player's limbs. Further, the notification means 600 is not limited to a sound or light notification of the player, but for example, a vibration generator such as a vibrator is provided inside the slot machine 10 to vibrate a specific part. It is possible to make a notification recognized by the player's tactile sense.

<Description of Main Control Circuit 100>
The main control circuit 100 includes a winning lottery means 410, a winning lottery result storage means 420, a reel control means 430, a winning determination means 440, a winning lottery probability changing means 450, and a winning processing means 460. The role lottery means 410 determines whether or not one or more of the predetermined roles are won by the role lottery process. The predetermined roles described above are roughly classified into three types: small roles, replaying roles, and special roles. A small combination is a combination in which a predetermined number of medals are paid out to the player when established, and a plurality of types of small combinations are determined according to the number of medals to be paid out. When a re-game is established, the game can be played again without inserting a game medium only for the next game. This replayable game is called replay. When the special combination is established, the special game in which the probability that the small combination wins is increased until the predetermined end condition is satisfied from the next game is started. In this special game, a middle bonus game a (hereinafter referred to as MB game a) that ends when the number of medals paid out is 181 or more, and a middle bonus game b (hereinafter referred to as MB game a) that ends when the number of medals paid out is 121 or more. There are two types of middle bonus games with different end conditions (MB game b). The combination that will start MB game a from the next game is called MB combination a, and the combination that starts MB game b is called MB combination b.

  The role lottery means 410 includes, for example, the random number generator 112 (hard random number, etc.) shown in FIG. Random number determination means 414 for determining the presence / absence of a winning combination and the winning combination by comparing a numerical value with a combination lottery table stored in the ROM 108 is provided. The control processing by the role lottery means 410 is shown in steps S54 to S84 of a role lottery processing subroutine (see FIG. 12) described later. Further, through the process of step S42, the role lottery is executed only during the general game, and is not executed during the MB game a or the MB game b. In the following, the types of roles that are the targets of the above-mentioned role lottery will be described with reference to FIG. 6, and the contents of the role lottery table used in the role lottery will be described with reference to FIGS.

  FIG. 6 shows the name of the combination that is the subject of the combination lottery and the contents of the symbol combination by the reels 40R, 40C, and 40L corresponding to each combination (including losers). As shown in this figure, there are MB combination a, MB combination b, small combination 1, small combination 2, re-playing combination 1, and re-playing combination as the combination of the above-mentioned combination lottery means 410. There are 6 types of roles. Also, the small combination 1 is associated with two symbol combinations “ADF” and “BDF”, and each of the other combinations is associated with one unique symbol combination. Yes. For each of these six types of symbols, the symbol combination displayed on the display window 22 when the reels 40R, 40C, and 40L are rotated and then stopped coincides with one of the symbol combinations corresponding to each symbol shown in FIG. In this case, a combination corresponding to the symbol combination is established. Re-game combination 1 (design combination: A-D-E) and re-play game combination 2 (design combination: B-D-E) are different in the corresponding design combination, but any re-game combination is established. Even so, the next game can be played without inserting medals. Further, when a small combination 1 is established, 15 medals are paid out, and when a small combination 2 is established, one medal is paid out. In the following, the establishment of these small combinations 1 or 2 is particularly referred to as “winning”. Furthermore, when the symbol combination displayed on the display window 22 does not match any of the symbol combinations corresponding to each combination shown in FIG. 6 (symbol combination: ACF), it is lost.

  Next, FIG. 7 to FIG. 9 show the contents of various role lottery tables that are referred to in the role lottery. Each figure shows the name of the role (including lost) that is the subject of the role lottery, The lottery result number corresponding to the combination and the number for each combination are shown. Here, the numeric value is associated with each combination that is the subject of the combination lottery and losing for each numerical value that can be generated by the random number generator 112 (all 65536 from 0 to 65535). Indicates the number of numbers. Therefore, the value obtained by dividing the number shown in each winning lottery table by 65536 is the winning probability of each winning or losing. It should be noted that detailed description of how each numerical value that can be generated by the random number generator 112 and each combination that is a lottery is associated with each other is assumed to be a conventional method. .

  As shown in FIG. 7 to FIG. 9, in each combination lottery table, the contents of the combination subject to the combination lottery are the same, and in particular, the combination MB combination a and MB combination b are in any combination lottery table. The winning combination is made together with the small part 2 (see lottery result numbers 1 and 2). Also, a small role 2 / MB role a (lottery result number 1), a small role 2 / MB role b (lottery result number 2), a small role 2 (lottery result number 3), and a small role 1 (lottery result number 4). ) Is also common in each lottery table. On the other hand, the probability of losing is different between each lottery table, 1/20 in the role lottery table with the content shown in FIG. 7, 1/150 in the role lottery table with the content shown in FIG. In the combination lottery table with the content shown in FIG. In addition, the difference in the probability of losing affects the winning probabilities of the replaying role 1 and the replaying role 2, and in the role lottery table having the contents shown in FIG. Is 1 / 7.3, 1 / 5.5 in the role lottery table with the content shown in FIG. 8, and 1 / 5.4 in the role lottery table with the content shown in FIG. This is because the combined probability of the re-gamer and the probability of losing is 1 / 5.35 in any lottery table. It can also be said that it differs between the role lottery tables.

  Each of the winning lottery tables having the contents shown in FIGS. 7 to 9 is used during the general game, but is selectively used depending on whether the current RT state is RT0 to RT5. Here, the combination lottery table having the contents shown in FIG. 7 is used when the state is in the state of RT0, RT3, RT4, RT5. 8 is used when it is in the RT1 state, and the role lottery table with the content shown in FIG. 9 is used when it is in the RT2 state. The role lottery table is switched by a role lottery probability changing unit 450 (see FIG. 5) described later.

  In the present embodiment, when the RT state is one of RT0 and RT3 to RT5, one combination lottery table (see FIG. 7) is shared, but in each RT state, the winning probability of each combination is Different unique combination lottery tables may be used. In this case, when it is not desired to greatly change the winning probability of each combination in each RT state of RT0 and RT3 to RT5, for example, in the combination lottery table corresponding to each RT state, It is advisable to use a role lottery table in which only the ratio of the numbers is slightly different (the numbers are increased or decreased by about 1-2). As a specific example, when the role lottery table shown in FIG. 7 (the number of replaying player 1 is 655 and the number of replaying player 2 is 8323) is used at RT0, The number of re-gaming 1 is 656, the number of re-gaming 2 is 8322, the number of re-gaming 1 in the RT 4 lottery table is 654, the number of re-gaming 2 is 8324, and for RT 5 In the role lottery table, the ratio of the number of the replaying game 1 and the number of the replaying game 2 is slightly different, for example, the number of the replaying game 1 is 653 and the number of the replaying game 2 is 8325. Make it.

  Returning to FIG. 5, the lottery result storage unit 420 stores the result of the lottery determined by the random number determination unit 414. That is, for each combination shown in FIG. 6, information indicating whether or not the winning combination is won or not (hereinafter referred to as non-winning) is stored. The role lottery result storage means 420 specifically corresponds to the RAM 110 shown in FIG. That is, in the RAM 110, a storage area for storing the value of the winning flag corresponding to each combination shown in FIG. 6 is secured. As a result of the winning combination, the value of the winning flag corresponding to the winning combination is a random number. The determination means 414 sets (turns on) “1”.

  The reel control means 430 receives the reel rotation start signal transmitted from the start switch 36, drives the motors 80L, 80C, 80R to rotate the reels 40L, 40C, 40R, and stops switches 37L, 37C, 37R. By receiving the reel stop signal transmitted from, the reels 40L, 40C, and 40R are stopped, and the reel operation control is performed. Here, the reel control unit 430 includes a general game stop control unit 432 and a special game stop control unit 434, and performs different reel stop control during the general game and during the MB game.

  First, during a general game, the symbol combination corresponding to the winning combination in the winning lottery by the winning lottery means 410 is displayed on the display window 22 by the stopping control means 432 during the general game, or lost in the winning lottery. If so, the reels 40L, 40C, and 40R are stopped so that a symbol combination corresponding to some combination is not displayed. In order to realize such reel stop control, the general game stop control means 432 actually stops the reels 40L, 40C, 40R after receiving the reel stop signal from the stop switches 37L, 37C, 37R. In the meantime, a margin for rotating the reel by up to two symbols is provided. That is, as shown in FIG. 2, the symbol arrangement on each reel has two types of symbols (symbol “A” and symbol “B” on the left reel 40L, symbol “C” and symbol “D” on the middle reel 40C. In the right reel 40R, the symbols “E” and “F”) are alternately arranged, and as shown in FIG. It is determined by the combination of two kinds of symbols. Thus, regardless of the timing at which the reel stop signal is received from the stop switches 37L, 37C, 37R, the symbol combination corresponding to the winning combination is displayed on the display window 22 in the winning lottery result storage unit 420. Can be made.

  That is, the symbol arrangement of the reels 40L, 40C, and 40R has the contents shown in FIG. 2, and a maximum of two symbols from when the reel stop signal is received until the reel is actually stopped, Since the reel can be rotated, stop switches 37L, 37C, and 37R can be displayed at a timing when the player can stop and display the symbol combination corresponding to MB combination a or MB combination b on the display window 22. Can be stopped and displayed on the display window 22 from among the symbol combinations corresponding to the small combination 1, the small combination 2, the replaying combination 1, and the replaying combination 2 combination. Therefore, the small combination 1, the small combination 2, the re-playing combination 1 and the re-playing combination 2 are: “If the timing of the stop instruction from the reel stop instruction means is the timing at which the special combination can be established, This corresponds to a “predetermined combination that can be established according to timing”.

  On the other hand, during the MB game a or the MB game b, the special game stop control means 434 performs stop control of the reels 40L, 40C, and 40R only according to the timing at which the reel stop signal is received from the stop switches 37L, 37C, and 37R. Specifically, first, when a reel stop signal is received from the stop switch 37L, the latest symbol that can be stopped at the “fixed position” described above is displayed on the display window 22 at the rotation position of the reel at that time. Let For example, when the reel stop signal is received from the stop switch 37L, the rotation position of the reel 40L is set to the intermediate position between the symbol “A” of symbol number 9 and the symbol “B” of symbol number 10 in the display window 22. In the case of the display position, the special game stop control means 434 stops the reel 40L when the symbol “B” of the symbol number 10 reaches the “fixed position”. Separately, for example, when the rotational position of the reel 40L is in a position where the intermediate position between the symbol “B” of symbol number 2 and the symbol “A” of symbol number 3 is displayed in the display window 22. When the symbol “A” of symbol number 3 reaches the “fixed position”, the reel 40L is stopped.

  Further, when the reel stop signal is received from the stop switch 37C, the reel 40C is stopped so that the latest symbol “D” is displayed on the display window 22, and when the reel stop signal is received from the stop switch 37R, The reel 40R is stopped so that the latest symbol “F” is displayed in the display window 22. In this way, the special game stop control means 434 displays the symbol combination “ADF” or “BDF” on the display window 22 in accordance with the reel stop signal from the stop switches 37L, 37C, 37R. Stop each reel as shown in Therefore, during the MB game a or the MB game b, the small role 1 always wins (see FIG. 6).

  Next, when the reel control unit 430 performs stop control for all of the reels 40L, 40C, and 40R, the winning determination unit 440 refers to each symbol combination shown in FIG. It is determined whether or not a corresponding symbol combination is displayed (that is, a game result of one game). The winning determination unit 440 includes a game state transition unit 442, an RT state transition unit 444, and a combination lottery result update unit 446, and performs various processes after determining the game result.

  First, the gaming state transition means 442 shifts the current gaming state to another gaming state according to the determination result described above. Specifically, the information (any one of the general game, the MB game a, and the MB game b) indicating the current game state stored in the RAM 110 is updated according to the result of the winning determination described above. That is, when the MB game a is established when the current game is in the general game, the game state is updated from the general game to the MB game a, and when the MB game b is established, the game state is changed from the general game to the MB game. Update to game b. In addition, when it is determined that the small role 1 has been won during the MB game a, and the cumulative number of medals paid out during the MB game a becomes 181 or more, the gaming state is changed. MB game a is updated to general game. Further, when it is determined that the small role 1 is won during the MB game b, and the total number of medals paid out during the MB game b becomes 121 or more, the gaming state is changed. Update from MB game b to general game.

  Next, the RT state transition means 444 determines a predetermined state from the current RT state when the current gaming state is a general game and any of a plurality of predetermined conditions is satisfied. Transition to RT state. Here, the transition of the RT state will be described with reference to FIG. Here, (a) of FIG. 10 is a table summarizing the types of RT states that can be transferred and the respective characteristics, and (b) is a table showing the current RT state, the transfer conditions, and the transfer conditions. (C) is a transition diagram showing the relationship shown in (b), and RT0 to RT5 indicated by ellipses are as follows. This means that the game state is a general game, and the MB game a and the MB game b indicated by rectangles mean that the respective game states are in the MB game a and the MB game b.

  As shown in FIG. 10A, in the slot machine 10, six types of RT states RT0 to RT5 are determined in advance as described above. For RT0, RT3, RT4, and RT5, the winning lottery table having the contents shown in FIG. 7 is used, so that the loss probability is 1/20 and the re-game winning probability is 1 / 7.3. In RT1, the role lottery table having the contents shown in FIG. 8 is used, so that the loss probability is 1/150 and the re-game winning probability is 1 / 5.5. In RT2, the contents shown in FIG. Therefore, the loss probability is 1/400, and the re-playing role winning probability is 1 / 5.4. Furthermore, the prescribed number of games is determined for each of RT1, RT2, and RT3. This specified number of games is one of the RT transition conditions, and when a specified number of games is played in the RT state, the game moves to another RT state. In addition to the above-mentioned prescribed number of games, the transition condition of the RT state includes the fact that MB role b has been won in the role lottery (MB role b internal winning), as shown in FIG. The symbol combination corresponding to is stopped and displayed on the display window 22 (replaying combination 1 is established), and the symbol combination corresponding to replaying combination 2 or lose is stopped and displayed on the display window 22 (replaying combination) 2 is established or lost).

  Of the transition conditions described above, which condition is satisfied when which condition is satisfied is determined in advance according to the current RT state. That is, as shown in FIGS. 10B and 10C, when the game is performed for each specified number of games in RT1, RT2, and RT3, in any case, transition to RT0 is made (transition “C”, “ H "and" K "). In the RT state excluding RT4, if MB combination b is won internally in the combination lottery, in any case, the process proceeds to RT4 (transitions “B”, “F”, “I”, “L”, “P” "reference). Thus, when in the RT4 state, in the RAM 110, the value of the winning flag corresponding to the MB combination b is always set to “1”. Furthermore, in RT1 and RT5, if re-game combination 2 or lose is established, in either case, the process moves to RT 3 (see transitions “E” and “O”). If re-game combination 1 is established in RT 1, RT 2 (Refer to transition “D”). When the symbol combination corresponding to the MB combination a is stopped and displayed on the display window 22 in the RT state excluding RT4 (MB combination a is established), the game state is changed from the general game (RT state) to the MB game a. Transition (see transitions “A”, “G”, “J”, “M”, “Q”). When the MB game a ends, the gaming state becomes a general game again, and the RT state at that time becomes RT5 (see transition “R”). Furthermore, once the RT state shifts to RT4, it no longer shifts to another RT state, and the gaming state shifts to MB game b exclusively when the MB combination b is established (see transition “N”). When the MB game b ends, the gaming state becomes a general game again, and the RT state at that time becomes RT1 (see transition “S”).

  Information indicating which RT state is currently in the RAM 110 is stored in the RAM 110, and when the transition condition described above is satisfied and a transition is made from one RT state to another RT state, the RT state transition means 444 The information is updated. Then, in accordance with the current RT state stored in the RAM 110, the role lottery table used for the role lottery is switched by the role lottery probability changing means 450 described later.

  In addition, in FIG.10 (c), about the transition of the gaming state shown by the solid line arrow, it implements by the process during general game (refer FIG. 14) mentioned later. Further, the transition of the gaming state indicated by the dashed arrow is an RT transition process (see FIG. 15) described later, and the transition of the gaming state indicated by the dashed-dotted arrow is a role lottery process (see FIG. 12) described later. The transition of the gaming state indicated by the two-dot chain line arrow is performed in the MB gaming process (see FIG. 16) described later.

  Returning to FIG. 5, the role lottery result update unit 446 clears the information indicating the result of the role lottery stored in the role lottery result storage unit 420 after the determination of the game result described above. Specifically, if there is a winning flag value corresponding to each combination stored in the RAM 110 that is set to “1”, the value is reset to “0”. However, when the value of the winning flag corresponding to MB combination a or MB combination b is set, the value is not cleared until the corresponding MB combination is established, and the set state is maintained. Then, when it is determined in the game result determination that the corresponding MB combination has been established, the value of the winning flag is reset. In the following, the winning flags corresponding to the MB combination a and MB combination b are referred to as bonus flags, and the game period maintained with these bonus flag values set is referred to as the bonus flag being carried over. The contents of processing by the role lottery result updating means 446 are shown in a flowchart of a general game processing subroutine of FIG.

  The role lottery probability changing means 450 selects a role lottery table used in the role lottery by the role lottery means 410 according to the information indicating the current RT state described above. That is, if the current RT state stored in the RAM 110 is any one of RT0, RT3, RT4, RT5, the role lottery table having the contents shown in FIG. 7 is selected. When the role lottery table having the contents shown in FIG. 8 is selected and the RT lottery is RT2, the role lottery table having the contents shown in FIG. 9 is selected. The processing contents of the role lottery probability changing means 450 are shown in steps S44 to S52 of the role lottery processing subroutine of FIG.

  The winning processing means 460 drives a hopper (not shown) provided inside the slot machine 10 when the winning determination means 440 determines that either the small combination 1 or the small combination 2 has won. Control is performed to pay out the number of medals (see FIG. 6) corresponding to the winning small combination. The processing content of the winning processing means 460 is shown in step S34 of a main routine (see FIG. 11) described later.

<Description of Sub Control Circuit 200>
The sub control circuit 200 includes an effect control unit 510 and a notification driving unit 520. The effect control unit 510 determines the contents of the effect to be executed by the notification unit 600 based on various control information transmitted from the main control circuit 100. Here, the contents of the effect are determined by determining, for example, an image (moving image or still image) displayed on the display device 25, sound effects or musical sounds emitted from the speakers 64L and 64R, a blinking pattern of the upper effect lamp 70, and the like. Determination of the output timing of the selected image, sound, and blinking pattern is included. The notification driving unit 520 drives the speakers 64L and 64R, the display device 25, and the upper effect lamp 70 included in the notification unit 600 according to the contents of the effect determined by the effect control unit 510.

(Description of control processing)
Hereinafter, various controls performed in the above-described control circuit will be described in detail with reference to flowcharts.
FIG. 11 is a flowchart of a main routine showing a control process performed by the main control circuit 100. 12 to 16 are flowcharts of subroutines executed in the main routine. Of these subroutines, FIG. 12 shows the role lottery performed by the role lottery unit 410, the RT state transition control indicated by the alternate long and short dash line in FIG. 10C performed by the RT state transition unit 444, and the role lottery probability variation. 10 is a flowchart of a role lottery process subroutine for performing switching control of a role lottery table performed by means 450. FIG. 13 is a flowchart of the reel fluctuation / stop subroutine in which the reel control means 430 controls the rotation and stop of the reels 40L, 40C, 40R. FIG. 14 shows the determination of the game result during the general game performed by the winning determination means 440, the reset of each winning flag performed by the winning lottery result update means 446, and the MB game from the general game performed by the game state transition means 442. It is a flowchart of a winning determination process subroutine for performing a process of transition control of the game state to a or MB game b. FIG. 15 is a flowchart of an RT transition processing subroutine for performing RT state transition control processing indicated by a broken line in FIG. Further, FIG. 16 shows the determination of the game result during the MB game performed by the winning determination means 440, the transition control of the game state from the MB game a or the MB game b performed by the game state transition means 442 to the general game, and RT FIG. 11 is a flowchart of an MB gaming process subroutine for performing RT state transition control processing indicated by a two-dot chain line in FIG.

<Description of main routine>
First, the contents of the control process of the main routine executed by the CPU 106 of the main control circuit 100 will be described with reference to the flowchart of FIG. This main routine shows a control process when a game is performed in which one step from when a player inserts a game medium until the reels 40L, 40C, 40R are rotated and stopped is performed once.

  When the power of the slot machine 10 is turned on, the CPU 106 performs a predetermined self-check and sets initial values of various flags and control data stored in the RAM 110 (step S10). Here, the initial value of the game state is a general game, and the RT state at this time is RT0. Next, the CPU 106 determines whether or not the re-game establishment flag stored in the RAM 110 is turned on (step S12). This re-game establishment flag is turned on in step S128 of the general game processing subroutine shown in FIG. 14 described later when a re-game player is established in the previous game. When determining that the re-game establishment flag is off (NO), the CPU 106 determines whether or not a medal has been inserted (step S14). When it is determined that a medal has been inserted (YES), the process proceeds to step S20, and the inserted number counted by the medal counter installed in the medal insertion slot 32 is detected as the bet number. However, when medals exceeding the specified number (three in this embodiment) are inserted, the number exceeding the specified number is stored as a credit number in a predetermined storage area of the RAM 110.

  On the other hand, if the CPU 106 determines in step S14 that no medal is inserted (NO), the process proceeds to step S16 to determine whether there is a credited medal. If the value of the number of credits stored in the RAM 110 is 0, it is determined that there is no credited medal (NO), the process returns to step S14 again, and the determination processes of steps S14 and S16 are repeatedly executed. . On the other hand, when it is determined in step S16 that there is a credited medal (YES), the CPU 106 determines whether or not a bet operation signal has been received (step S18). This bet operation signal is transmitted when the player operates one of the bet switches 34 and 35. When it is determined that the bet operation signal has not been received (NO), the process returns to step S14 again, and the determination process from step S14 to step S18 is repeatedly executed. If the CPU 106 determines in step S18 that a bet signal has been received (YES), the number of bets is detected from the received bet operation signal (step S20). In either case of inserting a medal or using a credited medal, the detected bet number is stored in the RAM 110 as a new bet number. When using a credited medal, it is stored in the RAM 110 at the same time. A process of subtracting the number of detected bets from the number of credits that has been performed is performed (step S22). Thereafter, the routine proceeds to a combination lottery processing subroutine (step S24).

  If it is determined in step S12 described above that the re-game establishment flag is on (YES), the CPU 106 turns off the re-game establishment flag (step S26), and the above-described steps S14 to S22 are performed. Without performing the process, the process proceeds to the hand lottery process subroutine of step S24. That is, in the next game in which a re-game player is established, it is possible to play the game again without newly inserting medals or consuming the credited medals. Next, the CPU 106 executes the combination lottery processing subroutine in step S24. If the combination is won as a result of executing the subroutine, the winning combination corresponding to each combination stored in the RAM 110 is selected. Turn on the winning flag for the role. Details of the role lottery processing subroutine will be described later with reference to the flowchart of FIG.

  Next, the CPU 106 executes a reel fluctuation / stop subroutine for controlling the movement of the reels to be stopped after rotating the reels 40L, 40C, 40R based on the result of the winning lottery in step S24 (step S28). Details of the reel fluctuation / stop subroutine will be described later with reference to the flowchart of FIG. Next, the CPU 106 refers to the information indicating the gaming state stored in the RAM 110 after the reels 40L, 40C, 40R are stopped by executing the reel change / stop subroutine in step S28, and the current gaming state is determined. It is determined whether the game is a general game (step S30). When the game is in the general game (YES), the CPU 106 determines whether or not any combination is established, and executes a general game processing subroutine for performing a game state transition process or the like according to the determination result ( Step S32). Details of this subroutine will be described later with reference to the flowchart of FIG. Then, after executing the general game processing subroutine in step S32, the CPU 106 performs RT state transition control based on the current RT state and the determination result of whether or not the transition condition is satisfied. Is executed (step S34). Details of this subroutine will be described later with reference to the flowchart of FIG. After executing the RT transition processing subroutine in step S34, the CPU 106 performs a payout process (step S36) for paying out the number of medals corresponding to the winning small combination. In the payout process, it is possible to actually pay out medals from the medal payout outlet 60, or credit the medals by adding the number of medals to be paid out to the credit number stored in the RAM 110. One game is completed by the above control processing, and the CPU 106 returns to step S12 again.

  In step S30, when the current game state is MB game a or MB game b (NO), the CPU 106 determines whether or not any combination has been established, and the termination condition for each MB game is established. If so, an MB gaming process subroutine for performing a game state transition process or the like according to the determination result is executed (step S38). Details of this subroutine will be described later with reference to the flowchart of FIG. Then, after executing the MB gaming process subroutine, the CPU 106 performs a payout process for paying out the number of medals corresponding to the winning combination in step S36, and then returns to step S12. As described above, by repeating the control processing of steps S12 to S36 shown in the main routine, the player can play the game a plurality of times.

<Role lottery processing subroutine>
Next, the combination lottery processing subroutine performed in step S24 of the main routine will be described in detail with reference to the flowchart shown in FIG.
First, the CPU 106 determines whether or not a start switch operation signal has been received from the start switch 36 (step S40). If it is determined that the start switch operation signal is not received (NO), the determination in step S40 is performed again, and this is repeated until the start switch operation signal is received. When the start switch operation signal is received, the CPU 106 refers to information indicating the gaming state stored in the RAM 110 and determines whether or not the current gaming state is a general game (step S42). If it is determined that the game is MB game a or MB game b (NO), the CPU 106 ends the role lottery process subroutine shown in FIG. 12, and performs the process of step S24 of FIG. On the other hand, if it is determined that the game is in a general game (YES), the CPU 106 further refers to information indicating the RT state stored in the RAM 110 and determines whether or not the current RT state is RT1. (Step S44). If the current RT state is RT1 (YES), the CPU 106 reads the RT1 combination lottery table (see FIG. 8) stored in the ROM 108 (step S46). If it is determined in step S44 that the current RT state is not RT1 (NO), CPU 106 next determines whether or not the current RT state is RT2 (step S48). If it is determined that it is RT2 (YES), the CPU 106 reads the RT2 combination lottery table (see FIG. 9) stored in the ROM 108 (step S50). Furthermore, when it is determined in step S48 that the current RT state is not RT2 (NO), CPU 106 reads RT0 and RT3-RT5 combination lottery table (see FIG. 7) stored in ROM 108 (step S52). ).

  As described above, the CPU 106 reads out the role lottery table corresponding to the current RT state from the ROM 108 and performs the role lottery based on the read out role lottery table. In addition, as described above, the ratio of the re-playing winning combination winning probability in each winning lottery table is different from the ratio of the probability of being lost. By switching between these, the winning of winning in the winning lottery is performed by the processing of steps S44 to S50. Since the probability varies, the processing in steps S42 to S52 corresponds to the role lottery probability varying means 450 shown in FIG.

  When the CPU 106 reads the role lottery table corresponding to the current RT state from the ROM 108 by the processing of the above-described steps S46, S50, or S52, the CPU 106 next acquires the random number generated by the random number generator 112, It is determined whether or not any of the winning combinations is won or lost based on the read winning lottery table (step S54). Here, the processing of step S54 corresponds to the random number extraction means 412 and the random number determination means 414 shown in FIG.

  As a result of the determination in step S54, first, the CPU 106 has simultaneously won either the small combination 2 and the MB combination a (lottery result number 1) or the small combination 2 and MB combination b (lottery result number 2). Whether or not (step S56). When winning simultaneously (YES), the CPU 106 checks the value of each winning flag stored in the RAM 110 and determines whether or not the bonus flag is being carried over (step S58). If neither of the winning flags corresponding to the MB combination a and MB combination b is set and the bonus flag is not carried over (NO), the CPU 106 determines next that it has been won in step S54. Then, it is determined whether or not the MB combination is b (step S60). If it is the MB combination b (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT4 (RT = 4) (step S62). As a result, when the MB combination b is won in the combination lottery during the general game (step S42, NO) and the bonus flag is not carried over (step S58, NO), the RT state changes from RT0 and RT3 to RT5 to RT4. Migrate to Note that the processing in step S62 is performed when the bonus flag is not carried over, so that the current RT state is performed when RT4 is a transition condition for winning MB combination b in the combination lottery. There is no.

  When the current RT state shifts to RT4 by the process of step S62, the CPU 106 sets the value of the winning flag corresponding to the MB combination b among the winning flags corresponding to each combination stored in the RAM 110 to “1”. Then, the winning flag corresponding to the small combination 2 is set to “1” (step S66). On the other hand, if the MB combination a has been won, the determination result in step S60 is NO and the value of the winning flag corresponding to the MB combination a stored in the RAM 110 is set to “1” ( In step S68), in step S66, the winning flag corresponding to the small combination 2 is set to "1". In addition, although it is determined that either the small combination 2 and the MB combination a or the small combination 2 and the MB combination b are simultaneously won (step S56, YES), the bonus flag is already set and the bonus flag is carried over. If it is in the middle (step S58, YES), after changing the lottery result number to “3” (step S70), only the winning flag corresponding to the small combination 2 is set to “1” in step S66. By performing such processing, it is avoided that the MB combination a or the MB combination b is won again while the bonus flag is carried over.

  As described above, the process (steps S58 to S70) in the case of winning both the small combination 2 and the MB combination a or between the small combination 2 and the MB combination b (step S56, YES) in the combination lottery is completed. Then, the CPU 106 reads out the winning lottery result number and the control symbol data indicating the symbol symbol combination (see FIG. 6) corresponding to the winning flag for which “1” is set from the ROM 108 and stores it in the RAM 110. (Step S72). Then, the CPU 106 transmits the lottery result number and the control symbol data stored in the RAM 110 as the role lottery information to the sub control circuit 200 via the interface circuit 102 (step S74). When this process is finished, the combination lottery process subroutine of FIG. 12 is terminated. When the sub control circuit 200 receives the above-mentioned lottery information, the display device 25 and the speakers 64L and 64R are used to produce an effect based on the combination lottery information.

  Now, in step S56 described above, when the CPU 106 determines that neither the small role 2 and the MB role a or the small role 2 and the MB role b are won in the role lottery (step S56, NO), the next Next, the CPU 106 determines whether or not the small combination 1 or the small combination 2 has been won (step S76). If the CPU 106 determines that either the small role 1 or the small role 2 has been won (YES), the winning flag corresponding to the selected small role is set to “1” (step S78), and then the above-described step S72. The winning lottery result number and the control symbol data indicating the symbol symbol combination corresponding to the winning flag for which “1” is set are read from the ROM 108 and stored in the RAM 110. In step S74, the lottery result number stored in the RAM 110 and the control symbol data are transmitted as the role lottery information to the sub-control circuit 200 via the interface circuit 102, and then the role lottery processing subroutine of FIG. The process ends.

  Further, in step S76 described above, when the CPU 106 determines that neither the small role 1 or the small role 2 has been won in the role lottery (step S76, NO), the CPU 106 replays the replaying role 1 or replaying game. It is determined whether or not any of the combination 2 is won (step S80). When the CPU 106 determines that either of the re-game player 1 or the re-game player 2 has been won (YES), the winning flag corresponding to the selected re-game player is set to “1” (step S82), and then described above. The lottery result number won in step S72 and the control symbol data indicating the symbol combination of the combination corresponding to the winning flag for which “1” is set are read from the ROM 108 and stored in the RAM 110. In step S74, the lottery result number stored in the RAM 110 and the control symbol data are transmitted as the role lottery information to the sub-control circuit 200 via the interface circuit 102, and then the role lottery processing subroutine of FIG. The process ends.

  If it is determined in step S80 that no re-game player has been won (NO), it corresponds to the lottery result number won in step S72 as it is and a winning flag in which “1” is set. Control symbol data indicating a symbol symbol combination is read from the ROM 108 and stored in the RAM 110. In step S74, the lottery result number stored in the RAM 110 and the control symbol data are transmitted as the role lottery information to the sub-control circuit 200 via the interface circuit 102, and then the role lottery processing subroutine of FIG. The process ends.

<Explanation of reel fluctuation / stop subroutine>
In the main routine of FIG. 11, when the above-described combination lottery process subroutine (step S24) is completed, the CPU 106 next executes the reel fluctuation / stop subroutine (step S28). Hereinafter, a detailed description will be given using the flowchart of the reel fluctuation / stop subroutine shown in FIG.

  First, the CPU 106 reads the lottery result number and control symbol data stored in step S72 of FIG. 12 (step S90). Then, it is determined whether or not a predetermined shortest time (for example, 4.1 seconds) has elapsed since the reels 40L, 40C, and 40R started rotating in the previous game (step S92). If it is determined that the shortest time has not elapsed (NO), the determination process in step S92 is repeatedly executed. That is, the rotation of the reel, which is the next process, is not performed until the shortest time has elapsed. Thus, control is performed so that the number of medals consumed by a game played within a predetermined time does not exceed a predetermined number. When determining that the shortest time has elapsed (YES), the CPU 106 transmits a reel rotation start signal to the motor drive circuit 114 (step S94). Based on this signal, the motor drive circuit 114 starts driving the motors 80L, 80C, and 80R, and the reels 40L, 40C, and 40R start rotating.

  Next, the CPU 106 determines whether or not the reel that has started to rotate is rotating at a constant speed (step S96). When it is determined that the rotation of the reel has not yet reached a constant speed (NO), the determination process in step S96 is repeated. That is, the reel stop control, which is the next step, is not performed until the rotation of the reel reaches a constant speed. If the CPU 106 determines that the rotation of the reel is a constant speed rotation (YES), it is next determined whether or not a reel stop signal has been received from the stop switches 37L, 37C, and 37R (step S98). . This reel stop signal is transmitted from each of the stop switches 37L, 37C, and 37R when the player performs a push operation. Further, the CPU 106 performs reel stop control corresponding to the stop switch that has transmitted the reel stop signal. That is, when a reel stop signal is transmitted from the left stop switch 37L, stop control of the motor 80L that rotates the left reel 40L is performed. Similarly, when the reel stop signal is transmitted from the middle stop switch 37C, the stop control of the motor 80C for rotating the middle reel 40C is performed, and when the reel stop signal is transmitted from the right stop switch 37R, Stop control of the motor 80R that rotates the right reel 40R is performed.

  When determining that the reel stop signal has been received (YES), the CPU 106 transmits a reel stop information signal indicating the stop switch that has transmitted the reel stop signal to the sub-control circuit 200 (step S100). Next, the CPU 106 performs symbol combination control based on various information read from the RAM 110 in step S90 (step S102). In the symbol combination control, the stop position can be shifted from the symbol position displayed on the display window 22 when the reel stop signal is received until the reel rotates by a maximum of two symbols. The reel stop control is performed according to each game state (general game or MB game).

  In other words, during the MB game, when the reel 40 receives the reel stop signal from the stop switch 37L, the latest symbol that can be stopped at the above-mentioned “fixed position” is displayed at the rotation position of the reel. It is displayed on the window 22. When the reel stop signal is received from the stop switch 37C, the reel 40C is stopped so that the latest symbol “D” is displayed on the display window 22, and when the reel stop signal is received from the stop switch 37R, The reel 40R is stopped so that the latest symbol “F” is displayed in the display window 22.

  On the other hand, during the general game, the reels 40L, 40C, and 40R are controlled to stop so that the symbol combination indicated in the control symbol data read in step S90 is stopped and displayed on the display window 22. Here, if either of the small combination 2 and the MB combination a or the small combination 2 and the MB combination b is won simultaneously, or if any combination is won in the combination lottery while the bonus flag is carried over, step S90 , The control symbol data indicating the symbol combinations corresponding to the two types of combinations, that is, the MB combination a or MB combination b and the replay combination or small combination, is read out. In such a case, in the symbol combination control in step S102, the reels 40L, 40C, and 40R are controlled to stop so that the symbol combination corresponding to the re-playing combination or small combination is stopped and displayed on the display window 22. For this reason, the symbol combination corresponding to MB combination a or MB combination b is displayed on the display window 22 only when only the symbol combination corresponding to MB combination a or MB combination b is read in step S90. It is. That is, the reel stop control for stopping and displaying the symbol combination corresponding to the MB combination a or MB combination b on the display window 22 is performed only when the winning combination lottery while carrying the bonus flag is lost.

  Based on the above, when looking at the contents of the winning combination lottery tables shown in FIGS. 7 to 9, the winning combination probability of MB winning a and MB winning b is 1/3 in any winning lottery table. However, as described above, since the MB combination a and the MB combination b can be established only when the bonus flag is carried over and lost, the substantial probability of the MB combination is established. Will depend on the probability of being lost in the role lottery. Therefore, it can be said that the states of RT0 and RT3 to RT5 in which the role lottery is performed using the role lottery table shown in FIG. 7 have the highest probability of establishing the MB role. On the other hand, in the state of RT2 in which the role lottery table shown in FIG. 9 is used, even if the bonus flag is being carried over, the MB role can be established only with a probability of 1/400.

  Next, the CPU 106 determines whether or not all reels have been stopped (step S104). If it is determined that all the reels are not stopped (NO), the process returns to step S98, and the symbol combination control according to the reel stop signal is performed again. If it is determined in step S98 that a reel stop signal has not been received (NO), the process proceeds directly to step S104 to determine whether all reels have been stopped. As described above, the processes in steps S98 to S104 are repeated until all the reels are stopped. When it is determined in step S104 that all the reels are stopped (YES), the CPU 106 confirms that all the reels are stopped. All the reel stop signals shown are transmitted to the sub-control circuit 200 (step S106), and the reel fluctuation and stop processing is terminated.

<Description of general game processing subroutine>
In the main routine of FIG. 11, when it is determined that the current gaming state is in a general game after the above-described reel fluctuation and stop subroutine (step S28) is completed (step S30, YES), the CPU 106 A processing subroutine (step S32) is performed. Hereinafter, a detailed description will be given using the flowchart of the general game processing subroutine shown in FIG.

  First, the CPU 106 refers to the symbol combination corresponding to each combination shown in FIG. 6 stored in the ROM 108, and displays the result of the reels 40L, 40C, 40R being stopped by the reel fluctuation / stop subroutine shown in FIG. A winning symbol determination is made as to whether or not the symbol combination displayed on the window 22 matches a symbol combination corresponding to some combination (step S110). Then, information indicating a combination corresponding to the matched symbol combination is stored in the RAM 110 as a game result (step S112). Next, the CPU 106 refers to the game result stored in the RAM 110 in step S112, and whether or not the symbol combination corresponding to the MB combination a or MB combination b is stopped and displayed on the display window 22, that is, whether or not the MB combination is established. Is determined (step S114). When the MB combination is established (YES), the CPU 106 resets the winning flag of the MB combination set to “1” among the winning flags corresponding to each combination stored in the RAM 110 to “0”. (Step S116).

  Then, the CPU 106 updates the information indicating the current game state stored in the RAM 110 to the content indicating the MB game (that is, the MB game a or the MB game b) to be started by the established MB combination ( In step S118, the total payout count value stored in the predetermined storage area of the RAM 110 is cleared (step S120). This total payout count value indicates the total payout number of medals paid out during MB game a or MB game b. Next, the CPU 106 resets the winning flag of the re-game combination or small combination set to “1” among the selection flags corresponding to each combination stored in the RAM 110 to “0” (step S122). The general game processing subroutine shown in FIG. 14 is terminated.

  Next, when the CPU 106 determines that neither the MB combination a or the MB combination b is established in step S114 (NO), the CPU 106 determines whether or not the re-game combination 1 or the re-game combination 2 is established. (Step S124). When it is determined that either the re-game player 1 or the re-game player 2 has been established (YES), the CPU 106 sets the value of the re-game player establishment flag stored in the RAM 110 to “1” (ON) ( Step S126). In step S122, the winning flag of the replaying role or small role (in this case, either replaying role 1 or replaying role 2) set to “1” is reset to “0”. Then, the general game processing subroutine shown in FIG.

  Further, when the CPU 106 determines in step S124 that neither the replaying role 1 nor the replaying role 2 is established (NO), the CPU 106 determines whether the small role 1 or the small role 2 is established. (Step S128). When it is determined that either the small combination 1 or the small combination 2 is established (YES), the CPU 106 uses the payout number count value stored in the predetermined storage area of the RAM 110 to pay out a medal corresponding to the established small combination. The number is updated (step S130). This payout number count value is referred to as the number of medals to be paid out as a result of one game being played in the payout process of step S36 in the main routine shown in FIG. The payout number count value is cleared when the payout of medals is completed by the process of step S36 in FIG.

  In step S130, when the CPU 106 updates the payout number count value, in step S122 described above, either the re-playing combination or small combination (in this case, either small combination 1 or small combination 2). ) Will be reset to “0”, and the general game processing subroutine shown in FIG. 14 is terminated. In step S128, if the CPU 106 determines that neither the small role 1 or the small role 2 has been established (NO), it is assumed that the result of the current game has been lost, and the general game shown in FIG. The in-game processing subroutine is terminated.

<Explanation of RT transfer processing subroutine>
In the main routine of FIG. 11, when the above-described general game processing subroutine (step S32) is completed, the CPU 106 next executes the RT transition processing subroutine (step S34). Hereinafter, a detailed description will be given using the flowchart of the RT transition processing subroutine shown in FIG.

  First, the CPU 106 refers to information indicating the current RT state stored in a predetermined storage area of the RAM 110, and determines whether or not RT1 (RT = 1) is satisfied (step S140). If it is determined that the current RT state is RT1 (YES), the CPU 106 adds 1 to the game number count value stored in the predetermined storage area of the RAM 110 (step S142). This number-of-games count value indicates the number of games executed in the RT state when the current RT state is either RT1, RT2, or RT3. Each RT state Is referred to when determining whether or not the prescribed number of games shown in FIG. The number-of-games count value referred to in step S142 starts counting after MB game b ends and the current RT state shifts to RT1 in an MB game processing subroutine (see FIG. 16) described later. Therefore, the number of games in RT1 is shown.

  Then, the CPU 106 refers to the game result stored in the RAM 110 by the process of step S112 in FIG. 14, and determines whether or not a lost game player 2 has been established (step S144). If it is determined that the lose or re-playing combination 2 has been established (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT3 (RT = 3) (step S146) and stores it in the RAM 110. The played game count value is cleared (step S148). As a result, the current RT state shifts from RT1 to RT3, and the number of games in RT3 is newly counted after the next game. When the process of step S148 is performed, the CPU 106 ends the RT transition process shown in FIG. 15, and performs the payout process of step S36 in the main routine of FIG.

  When the CPU 106 determines in step S144 described above that the game player 2 has not lost or has not been established (NO), the CPU 106 determines whether or not the player 1 has been established (step S150). When the re-game player 1 is established (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT2 (RT = 2) (step S152), and stores it in the RAM 110 in step S148. Clear the number of games played. As a result, the current RT state shifts from RT1 to RT2, and the number of games in RT2 is newly counted after the next game. When the process of step S148 is performed, the CPU 106 ends the RT transition process shown in FIG. 15, and performs the payout process of step S36 in the main routine of FIG.

  Further, when it is determined in step S150 that the re-playing combination 1 is not established (NO), the CPU 106 refers to the game number count value stored in the RAM 110, and the game number count value is 500 or more. Whether or not (step S154). If it is determined that the game count value is 500 or more (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT0 (RT = 0) (step S156). After the current RT state is shifted from RT1 to RT0, the RT transition process shown in FIG. 15 is terminated, and the payout process in step S36 in the main routine of FIG. 11 is performed. On the other hand, if the number-of-games count value is not 500 or more in step S154 (NO), the RT transition process shown in FIG. In this way, by performing the processes of steps S142 to S156, the RT transition process when the current RT state is RT1 is performed.

  Next, when the CPU 106 determines in step S140 that the current RT state is not RT1 (NO), the CPU 106 determines whether or not the current RT state is RT2 (RT = 2) (step S140). S158). If it is determined that the current RT state is RT2 (YES), the CPU 106 adds 1 to the game number count value stored in the predetermined storage area of the RAM 110 (step S160). Here, since this game number count value is a value that is newly started by the process of step S148 when the current RT state is shifted to RT2 by the process of step S152 described above, Shows the number of games.

  Next, the CPU 106 determines whether or not the game number count value is 900 or more (step S162). If it is determined that the number-of-games count value is 900 or more (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT0 (RT = 0) (step S164), The RT state is shifted from RT2 to RT0. Then, the RT transition process shown in FIG. 15 is terminated, and the payout process of step S36 in the main routine of FIG. 11 is performed. If the CPU 106 determines in step S164 that the number-of-games count value has not reached 900 or more (NO), the RT transition process shown in FIG. In this way, by performing the processing of steps S160 to S164, RT transition processing when the current RT state is RT2 is performed.

  Next, when the CPU 106 determines in step S158 that the current RT state is not RT2 (NO), the CPU 106 determines whether or not the current RT state is RT3 (RT = 3) ( Step S166). If it is determined that the current RT state is RT3 (YES), the CPU 106 adds 1 to the game number count value stored in the predetermined storage area of the RAM 110 (step S168). Here, since this game number count value is newly counted by the process of step S180 when the current RT state is shifted to RT3 by the process of step S178, which will be described later, Shows the number of games.

  Next, the CPU 106 determines whether or not the game number count value is 3000 or more (step S170). If it is determined that the number-of-games count value is 3000 or more (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT0 (RT = 0) (step S172), The RT state is shifted from RT3 to RT0. Then, the RT transition process shown in FIG. 15 is terminated, and the payout process of step S36 in the main routine of FIG. 11 is performed. If the CPU 106 determines in step S170 that the number-of-games count value has not reached 3000 or more (NO), the RT transition process shown in FIG. In this way, by performing the processing of steps S168 to S172, RT transition processing when the current RT state is RT3 is performed.

  Next, when the CPU 106 determines in step S166 that the current RT state is not RT3 (NO), the CPU 106 determines whether or not the current RT state is RT5 (RT = 5) ( Step S174). If it is determined that the current RT state is RT5 (YES), the CPU 106 refers to the game result stored in the RAM 110 by the process of step S112 in FIG. 14, and determines whether or not a lost game player 2 has been established. Is determined (step S176). If it is determined that the loser or replaying player 2 has been established (YES), the CPU 106 sets the information indicating the current RT state stored in the RAM 110 to RT3 (RT = 3) (step S178) and stores it in the RAM 110. The played game count value is cleared (step S180). As a result, the current RT state shifts from RT5 to RT3, and the number of games in RT3 is newly counted after the next game. When the process of step S180 is performed, the CPU 106 ends the RT transition process shown in FIG. 15, and performs the payout process of step S36 in the main routine of FIG.

<Description of the MB game processing subroutine>
In the main routine of FIG. 11, when it is determined that the current gaming state is MB game a or MB game b after the above-described reel fluctuation and stop subroutine (step S28) is completed (step S30, NO), the CPU 106 Performs an MB gaming processing subroutine (step S38). In the following, a detailed description will be given using the flowchart of the MB game in-process subroutine shown in FIG.

  First, the CPU 106 refers to the symbol combination corresponding to each combination shown in FIG. 6 stored in the ROM 108, and displays the result of the reels 40L, 40C, 40R being stopped by the reel fluctuation / stop subroutine shown in FIG. A winning symbol determination is made as to whether or not the symbol combination displayed in the window 22 matches a symbol combination corresponding to any combination (step S190), and it is determined whether or not the small combination 1 or the small combination 2 has won. (Step S192). When the CPU 106 determines that the small combination 1 or the small combination 2 has won (YES), the payout number count value stored in the predetermined storage area of the RAM 110 is used as the payout of medals corresponding to the established small combination. The number is updated (step S194). Next, the CPU 106 updates the total payout count value stored in the predetermined storage area of the RAM 110 by adding the payout number of medals corresponding to the established small combination (step S196).

  Next, the CPU 106 refers to information indicating the current gaming state stored in the RAM 110, and determines whether or not the MB game b is in progress (step S198). Here, when the CPU 106 determines in the above-described step S192 that neither of the small combination 1 or the small combination 2 has won (NO), the direct step is performed without performing the processing of the above-described steps S194 and S196. The determination of S198 is performed. When the current gaming state is MB game b (YES), the CPU 106 refers to the value of the total payout number stored in the RAM 110 and determines whether or not the total payout number has reached 121 or more, that is, MB game. It is determined whether the end condition of b is satisfied (step S200). When the total payout number is less than 121 (NO), the CPU 106 ends the MB game processing subroutine shown in FIG. 16, and performs the payout process shown in step S36 of the main routine shown in FIG. On the other hand, if the total payout number is 121 or more (YES), the CPU 106 sets the RT state to RT1 (RT = 0) (step S202) and clears the game number count value stored in the RAM 110. (Step S204). And the information which shows the present game state memorize | stored in RAM110 is updated to a general game (step S206), and the MB game process subroutine shown in FIG. 16 is complete | finished.

  If the CPU 106 determines in step S198 described above that the current game state is MB game a (NO), the total payout number is 181 with reference to the value of the total payout number stored in the RAM 110. It is determined whether or not the number of cards has been reached, that is, whether or not the MB game a termination condition has been satisfied (step S208). If the total number of payouts is less than 181 (NO), the CPU 106 ends the MB gaming process subroutine shown in FIG. 16, and performs the payout process shown in step S36 of the main routine shown in FIG. On the other hand, if the total number of payouts is 181 or more (YES), the CPU 106 sets the RT state to RT5 (RT = 5) (step S202), and the current state stored in the RAM 110 in step S206. After the information indicating the game state is updated to the general game, the MB game in-process subroutine shown in FIG. 16 is ended.

  In the slot machine 10 having the above-described configuration, the MB combination cannot be established unless the game is lost in the bonus lottery while the bonus flag is carried over. Therefore, the MB combination is established by appropriately changing the probability of the loss. Probability can be controlled. Therefore, as shown in FIGS. 10B and 10C, the conditions (transition conditions) for changing the probability of losing are: establishment of a specific combination, internal lottery of a specific combination, digestion of the prescribed number of games, etc. By providing as appropriate, it is possible to provide a game that is less likely to get bored by the player and less likely to reduce the player's willingness to play. In addition, as in RT0 to RT5 shown in FIG. 10, there are a plurality of gaming states having different probabilities of winning in the lottery drawing, and different gaming states having different transition conditions and transitioning gaming states even if the probability of being lost is the same. In each game state, a state in which a game in which an MB combination is easy to be established continues or a game that is difficult to establish by transitioning to a predetermined game state in accordance with the established transition condition is established. A continuous state can be created, and it is possible to provide a game that moderates the player's gambling.

  Also, in the role lottery, the MB role a and the MB role b are always won at the same time as the small role 2, so even in the game where the MB role a or the MB role b has been won, Formation of a or MB combination b is prevented. For this reason, it is possible to control the establishment probability of the MB combination a and the MB combination b only by the probability of winning in the combination lottery in the game while the bonus flag is carried over.

  Furthermore, in the slot machine 10, the control relating to the establishment probability of the MB combination described above is performed in a state where the re-game combination can be established and the timing at which it can be established as in the conventional slot machine. Regardless of the operation, the reel stop control is realized without disturbing the establishment of the re-game. That is, in each RT state of RT0 to RT5, when the re-game player 1 or the re-game player 2 wins by the winning lottery, the re-play game player who has won is always established. Therefore, the fairness of the game can be kept strictly.

  7 to 9, the special combination (in the slot machine 10, MB combination a and MB combination b) was to be won at the same time as the small combination 2. However, the present invention is not limited thereto, and a combination lottery table in which a special combination is won by itself may be used. However, in the symbol arrangement shown in FIG. 2, when the reel stop control is performed by the general game stop control means 432 shown in FIG. 5, if the MB combination a or MB combination b is won independently in the combination lottery, In this case, it is preferable that the probability that the MB combination a or the MB combination b is won alone is as low as possible.

  Further, in one game, there are two types of combinations for which the winning flag can be set: a special combination and a small combination or a re-playing combination. The winning lottery table that can be won at the same time may be used, and the winning flags corresponding to the three types of special winning combination, small winning combination, and re-playing winning combination may be set while the bonus flag is carried over. In this case, the re-gamer is established with the highest priority, but the symbol arrangement of each reel, the range in which the reel stop control is possible (in the slot machine 10, for two symbols), the operation timing and operation sequence of the stop switch by the player For example, if you are in a situation where a re-playing role cannot be established, win a small role, and if you are unable to establish a re-playing role or a small role, Reel stop control is performed so as to be established.

It is a front view showing the appearance of the slot machine according to the present invention. It is explanatory drawing for demonstrating the symbol arrangement | sequence of each reel with which the slot machine is provided. It is a block diagram which shows the structure of the main control circuit which controls the slot machine. It is a block diagram which shows the structure of the sub control circuit which controls the slot machine. It is a functional block diagram which shows the function of control of the slot machine. FIG. 4 is an explanatory diagram for explaining types of winning combinations predetermined for the slot machine, symbol combinations corresponding to the winning combinations, and payout contents. In this slot machine, it is the explanation drawing in order to explain the contents of the part lottery table which is used with the part lottery when it is in the state of RT0 and RT3-RT5. In the slot machine, it is the explanation drawing in order to explain the contents of the part lottery table which is used with the part lottery in the state of RT1. In the slot machine, it is the explanation drawing in order to explain the contents of the part lottery table which is used with the part lottery in the state of RT2. In the slot machine, it is the explanation drawing in order to explain the condition and the contents of the transition for changing the state of RT0-RT5. It is a flowchart which shows the content of the main routine which controls the progress of the game performed with the main control circuit of the slot machine. It is a flowchart which shows the content of the combination lottery process subroutine performed within the main routine. It is a flowchart which shows the content of the reel fluctuation | variation and stop subroutine performed within the main routine. It is a flowchart which shows the content of the general game process subroutine performed within the main routine. It is a flowchart which shows the content of RT transfer process subroutine performed within the main routine. It is a flowchart which shows the content of the MB game process subroutine performed within the main routine.

Explanation of symbols

10 slot machine 22 display window 36 start switch 37L, 37C, 37R stop switch 40L, 40C, 40R reel 100 main control circuit 106, 206 CPU
108, 208 ROM
110, 210 RAM
DESCRIPTION OF SYMBOLS 112 Random number generator 200 Sub control circuit 300 Operation means 310 Game start instruction means 320 Stop instruction means 410 Role lottery means 412 Random number extraction means 414 Random number judgment means 420 Role lottery result storage means 430 Reel control means 432 General game stop control means 434 Special game stop control means 440 Prize determination means 442 Game state transition means 444 RT state transition means 450 Role lottery probability variation means

Claims (6)

When a plurality of predetermined game media are inserted, a plurality of reels each displaying a plurality of symbols can be rotated, and when the plurality of reels are rotated and then stopped, any combination is supported. When the combination of symbols is displayed, a slot machine in which the combination is established, processing corresponding to the combination is performed, and one game is completed,
A game start instruction means for instructing the start of the game in response to an external operation after the plurality of game media are inserted;
Reel stop instruction means for instructing rotation stop of the plurality of reels according to an operation from the outside;
In response to a start instruction from the game starting means, a special combination that starts a special game that has a higher probability of establishment in each game when established is established, and the next game medium is inserted without establishment of the game medium. A role lottery means for performing a role lottery for determining whether or not one of the multiple types of roles including a re-playing role capable of performing a game is won,
When a predetermined condition is satisfied, in the role lottery by the role lottery means, the composite probability of the probability of winning the re-playing role and the probability of losing none of the multiple types of roles is changed. And a winning lottery probability changing means for changing a probability of winning the re-playing player and a ratio of the probability of being lost,
In accordance with the result of the lottery, the lottery result storage means for storing lottery result information indicating whether the winning or the non-winning is not won for each of the plurality of types of roles;
After the plurality of reels are rotated in response to a start instruction from the game start instruction means, the combination stored in the combination lottery result storage means is in accordance with a stop instruction timing from the reel stop instruction means. Among the lottery result information, the plurality of reels are stopped so that a combination corresponding to the lottery result information indicating the winning is established, and regardless of a change in the winning probability of the re-playing combination by the combination lottery probability changing unit, When the lottery result information corresponding to the re-gamer indicates winning, reel control means for stopping the plurality of reels so that the re-gamer is always established;
Before the end of the first game and the start of the next game, the lottery result information of the role other than the special role is updated from the content indicating winning to the content indicating non-winning, and the lottery of the special role The result information comprises a role lottery result update means for updating from the content indicating winning to the content indicating non-winning when the special role is established,
The reel control means includes
If the timing of the stop instruction from the reel stop instructing means is a timing at which the special combination can be established, a predetermined combination of the special combination and a combination other than the special combination is established according to the timing. Can be
In the combination lottery result storage means, the lottery result information of the special combination and the predetermined combination indicates a winning combination, and the timing of the stop instruction from the reel stop instruction unit can establish the special combination. When the timing is reached, the plurality of reels are stopped so that only the predetermined combination is established, only the lottery result information of the special combination indicates winning, and the timing of the stop instruction from the reel stop instruction unit However, when it is time to establish the special combination, the plurality of reels are stopped so that the special combination is established. The predetermined combination includes a specific small combination that, when established, will pay out a predetermined number of the game media,
The role lottery means
2. The slot machine according to claim 1, wherein in the one-time lottery, the special combination and the specific small combination are won with a predetermined probability. The number of game media to be paid out when the specific small combination is established is smaller than the number of game media inserted in which the plurality of reels can be rotated,
The slot machine according to claim 2, wherein a winning probability of the predetermined combination in the combination lottery is higher than a probability that the predetermined combination is not won. The predetermined condition is that a predetermined number of games are performed with the current probability of losing in the combination lottery means being determined, and a predetermined combination is won in the combination lottery by the combination lottery means. Or a predetermined symbol combination is displayed when the plurality of reels are stopped, or a combination thereof.
4. The role lottery probability changing means changes the probability of losing in the role lottery means when the predetermined condition is satisfied. 5. Slot machine. A plurality of the predetermined conditions are determined in advance,
The role lottery means performs a plurality of types of lottery with different probabilities of being lost,
The role lottery probability changing means is:
When one of the predetermined types of predetermined conditions is satisfied, based on the established predetermined condition and the type of the lottery currently performed by the winning lottery means The slot according to any one of claims 1 to 3, wherein the type of lottery to be executed from the next game is determined, and the determined part lottery is executed by the part lottery means. Machine. The plurality of types of predetermined conditions include that a predetermined number of games are performed with the current probability of losing in the combination lottery means, and that a predetermined combination is selected in the combination lottery means. The slot machine according to claim 5, further comprising: displaying a predetermined symbol combination when the plurality of reels are stopped.

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