JP2009011583A - Slot machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slot machine which generates a bonus state of a lower advantageous degree than a usual game state, wherein it is possible to inhibit frequency of finishing a game in the prize state of winning a bonus combination functioning as a trigger of getting this bonus state. <P>SOLUTION: The slot machine 1 is shifted to the first bonus state, which is more advantageous to the player side than a normal state, according to the stop display of the first bonus symbol in the normal state on the one hand and is shifted to the second bonus state, which becomes more disadvantageous for the player side than the normal state, according to the stop display of the second bonus symbol in the normal state. Further, the slot machine 1 is equipped with a privilege granting means 43 which gives predetermined privilege to the player side after a game next to a game which is finished after the second bonus symbol is stop indicated. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a slot machine that generates a bonus state having a lower advantage than the normal state in addition to a bonus state having a higher advantage than the normal state.

  Conventionally, for example, a slot machine that performs a normal state in which an expected value (payout rate) that is a ratio of the number of payouts to the number of game media input is less than 100% and an advantageous bonus state in which the expected value exceeds 100% It has been known. In recent years, in addition to the above-described advantageous bonus state, a slot machine has also been proposed that generates an unfavorable bonus state while keeping the expected value lower than the normal state (see, for example, Patent Document 1). In this slot machine, the suppression of the expected value in the disadvantageous bonus state is added to the expected value in the advantageous bonus state. Therefore, in this slot machine, the fluctuation in the number of acquired game media is increased, the undulation of the game is expanded, and the interest of the game can be enhanced.

  However, the conventional slot machine has the following problems. That is, there is a possibility that a player who finishes the game in response to the occurrence of the disadvantageous bonus state, and there is a possibility that the symbol corresponding to the bonus state is left in a state where the symbol is stopped and displayed. Such a state clearly indicates that an unfavorable bonus state is started, and there is a possibility that the player's willingness to start a new game may be reduced.

JP 2006-263457 A

  The present invention has been made in view of the above-described conventional problems, and in a slot machine that generates a bonus state that is less advantageous than the normal state, a game with a symbol corresponding to the bonus state stopped and displayed. The present invention intends to provide a slot machine that suppresses the possibility of being terminated.

The present invention shifts to the first bonus state which is more advantageous to the player than the normal state in response to the stop display of the first bonus symbol in the normal state, while displaying the stop of the second bonus symbol in the normal state. Accordingly, the slot machine is configured to shift to the second bonus state, which is more disadvantageous to the player than the normal state, and to return to the normal state when the bonus end condition scheduled in each bonus state is satisfied. Because
The slot machine is characterized by comprising a privilege granting means for granting a predetermined privilege to the player after the game after the game ended with the second bonus symbol stopped and displayed (Claim 1). .

  The slot machine of the present invention has the disadvantageous second bonus state in which the advantage degree is suppressed compared to the normal state, in addition to the above-described first bonus state, which is advantageous to the player side higher than the normal state. It is a slot machine that occurs. The slot machine includes the privilege granting means for granting a predetermined privilege to the player when the second bonus symbol corresponding to the second bonus state is stopped and displayed.

  This privilege granting means does not grant a privilege such as payout of game media in a game that has been stopped and displayed with the second bonus symbol. The privilege granting means is configured to grant the predetermined privilege after the next game following the game which has been stopped and displayed after the second bonus symbol is stopped. According to the slot machine, even when the second bonus symbol is stopped and displayed, it is possible to motivate the player to play the next game due to the appeal of the predetermined privilege. Therefore, in the slot machine, there is little possibility that the game will be terminated in a state where the second bonus symbol is stopped and displayed.

  As described above, according to the slot machine of the present invention, the corresponding second bonus symbol is stopped and displayed in spite of the slot machine that generates the second bonus state that is less advantageous than the normal state. It is possible to suppress the possibility that the game is ended and left in the state.

The slot machine of the present invention may be a slot machine in a narrow sense using medals and coins as game media, or a parrot (R) using pachinko balls as game media.
Further, the bonus ending condition is that the number of payouts of game media has reached a predetermined number, the number of acquisitions obtained by subtracting the input number from the number of payouts of game media has reached a predetermined number, and the number of games consumed is a predetermined number Various conditions such as having reached can be set.

  The first bonus state that is more advantageous than the normal state includes a gaming state in which an expected value (payout rate) that is a ratio of the number of payouts to the number of game media inserted is set higher than that in the normal state. On the other hand, the second bonus state which is disadvantageous compared to the normal state includes a gaming state in which the expected value is set lower than the normal state. As a specific method for setting the expected value in the second bonus state to be lower than that in the normal state, for example, the winning probabilities of each combination excluding the bonus combination are set in the same manner as in the normal state and the bonus combination is won. Various methods such as a method of setting the probability to zero and a method of setting the winning probability of each combination low can be considered.

The predetermined privilege is preferably a privilege that allows the next game to be performed free of charge (claim 2).
In this case, it is possible to direct the player who intends to end the game in response to the start of the second bonus state to execute the next game. Therefore, it is possible to suppress with high certainty the possibility that the game is ended and left as it is in a state where the second bonus symbol is stopped and displayed.

  In the second bonus state, it is preferable to include a second bonus period shortening unit configured to shorten the game period required to establish the bonus ending condition in accordance with the establishment of the predetermined condition (claim). Item 3).

  In this case, according to the establishment of the predetermined condition in the second bonus state, the game period required for the establishment of the bonus end condition is shortened. Therefore, if the predetermined condition is satisfied, the generation period of the second bonus state can be shortened, and the disadvantage of the player associated with the second bonus state can be suppressed. The player can play the game with a sense of expectation that the second bonus state can be terminated early if the predetermined condition can be satisfied during the period in which the second bonus state occurs.

The embodiment of the present invention will be specifically described with reference to the following examples.
Example 1
This example relates to a slot machine that generates a bonus state that is less advantageous than the normal state. This will be described with reference to FIGS.
As shown in FIGS. 1 to 3, the slot machine 1 of the present example is closer to the player than the normal state in response to the stop display of the first bonus symbol in the normal state where the bonus state has not occurred. While shifting to the advantageous first bonus state, the bonus state is shifted to the second bonus state which is more disadvantageous to the player side than the normal state in response to the stop display of the second bonus symbol in the normal state. The slot machine is configured to return to the normal state when the planned bonus end condition is satisfied.
The slot machine 1 is provided with a privilege granting means 43 for granting a predetermined privilege to the player side after the game after the game ended with the second bonus symbol stopped and displayed. The slot machine 1 further includes second bonus period shortening means 47 for shortening the game period required for establishing the bonus end condition in accordance with the establishment of the predetermined condition in the second bonus state.
Hereinafter, this content will be described in detail.

  First, the combination of the slot machine 1, the internal winning combination, and the winning combination will be described with reference to FIGS. In FIG. 3, the name of each combination is shown in the left column, the combination of each symbol 20 is shown in the middle column, and the privilege to be given as a prize is shown in the right column. In the slot machine 1, an internal winning combination by the internal lottery means 42 becomes an internal winning combination. When the role symbol which is the symbol 20 constituting the internal winning combination is aligned along any of the winning lines 211 to 215, the role becomes a winning combination.

  As shown in FIG. 3, the slot machine 1 of this example has a first bonus combination (hereinafter referred to as BIG1), a second bonus combination (hereinafter referred to as BIG2), a payout reduction combination, and a 15-sheet combination. Has 8 types of roles including small roles. BIG1 is an opportunity to generate the first bonus state (hereinafter referred to as the BIG1 state), which is a gaming state that is more advantageous to the player than the normal state. BIG2 is an opportunity to generate the second bonus state (hereinafter referred to as BIG2 state), which is a gaming state that is more disadvantageous to the player than the normal state. Furthermore, in the following description, “7-7-7” as the first bonus symbol is referred to as BIG1 symbol, and “7-7-BAR” as the second bonus symbol is referred to as BIG2 symbol.

  The BIG1 state and the BIG2 state are ended when the bonus end condition is satisfied. The bonus end condition in this example is that the number of medals as game media (the number of medal payouts) has reached the end payout number. In this example, the end payout number set according to the start of the BIG1 state and the BIG2 state is both set to 300 sheets. The difference between the end payout number in the BIG1 state and the end payout number in the BIG2 state is whether it is fixed or fluctuates. While the final payout number in the BIG1 state is fixed, the final payout number in the BIG2 state is subtracted in accordance with the payout of the payout reduction combination. In this example, the end payout number in the BIG1 state and the end payout number set in accordance with the start of the BIG2 state are set to the same value. However, instead of this, both may be set to different values. .

  The payout reduction combination is a combination that gives a privilege to reduce the number of final payouts set in the BIG2 state by 50 sheets. As will be described in detail later, in the second bonus period shortening means 47 of this example, a payout reduction winning combination is set as the predetermined condition for shortening the game period required for establishing the bonus end condition.

  The payout reduction combination is a combination that can be won internally only in the BIG2 state, and is a combination that is drawn in each game in the BIG2 state. For example, if the payout reduction combination wins when the final payout number is 300, the final payout number is 250. Each time the payout reducing combination wins, the number of finished payouts can be reduced, thereby shortening the execution period of the BIG2 state. In the slot machine 1, a payout reduction flag that is set to an on state in accordance with the payout of the payout reduction combination is defined. This payout reduction flag is a flag for requesting subtraction processing for the final payout number. Note that it is also possible to determine whether or not the end payout number is subtracted by lottery such as a winning probability of 50%, for example, instead of always subtracting the end payout number when winning a payout reduction combination.

  The slot machine 1 of this example has an external configuration as shown in FIG. A front portion facing the player in the slot machine 1 is formed by a front frame 10 having a substantially rectangular symbol display window 11 provided substantially at the center. In the front frame 10, a liquid crystal display unit 53 and a pair of left and right speakers 520 are disposed above the symbol display window 11, and a horizontally long decorative lamp 56 is disposed at the top. The front frame 10 has a base 100 that forms the base of the slot machine 1 below the symbol display window 11.

  As shown in FIG. 2, the base portion 100 is formed so as to protrude relatively toward the player with respect to the symbol display window 11 located behind the player. The base portion 100 has a table-like operation surface 14 at the upper end adjacent to the symbol display window 11, a medal tray 15 for paying out medals at the lower end, and a space between the operation surface 14 and the medal tray 15. An operation panel 13 is provided.

  As shown in FIGS. 1 and 2, the operation surface 14 has a bet button 64 for betting a credited (stored) medal, a settlement button 65 for paying out the credited medal, and a medal for betting on a game. And a medal insertion slot 630 for inserting. The operation panel 13 is provided with a start lever 62 for starting the symbol variation of the reel 21 and a stop button 61 for stopping the symbol variation.

  As shown in FIGS. 1 and 2, the bet button 64 is a button for designating 3 bets, which is the maximum bet number, as the number of game bets. The bet button 64 is configured to generate a 3-bet signal representing the number 3 of game bets. However, when the remaining credit is 2 or 1, a 2-bet signal or 1-bet signal is generated, and when the credit is zero, a bet signal is not generated.

  As shown in FIGS. 2 and 3, the start lever 62 is an operation lever that generates a change start signal, which is a control signal for the reel 21, at a timing when the player operates. In the slot machine 1 of this example, which is a 3-bet dedicated machine, when a medal is directly inserted or three medals are bet by operating the bet button 64, the start lever 62 is set to an effective state. Instead of the slot machine 1 of this example, which is a 3-bet dedicated machine, a slot machine that can selectively set the number of bets according to the player's preference may be used.

  As shown in the figure, the stop button 61 is an operation button that is generated at a timing when a player operates a variable stop signal that is a control signal for the reel 21. The stop button 61 of this example is a combination of a left stop button 61L corresponding to the left reel 21L, a middle stop button 61C corresponding to the middle reel 21C, and a right stop button 61R corresponding to the right reel 21R.

  The symbol display window 11 is a display window for displaying nine symbols 20 arranged in a two-dimensional matrix of three rows and three columns as shown in FIG. The portion corresponding to the symbol display window 11 in the front frame 10 is formed of a transparent resin plate so that the symbol 20 can be seen from the player side. For the nine symbols 20 arranged in the above two-dimensional matrix, winning lines 211 to 215 that are the arrangement direction of symbols to be awarded are set. As the winning lines, there are horizontal winning lines 211 to 213 and diagonal winning lines 214 and 215.

  The symbol variation display means 2 is a means for variably displaying the symbol 20 through the symbol display window 11 as shown in FIGS. The symbol variation display means 2 includes a left reel 21L, a middle reel 21C, and a right reel 21R. Each of the reels 21L, 21C, 21R is a rotary reel having a substantially columnar shape and seven types and 21 symbols 20 arranged on the outer peripheral surface thereof at a substantially constant interval. Each reel 21L, C, R has a reference position piece (not shown) at one reference position in the rotation direction. The reference position piece is a member as a detected piece detected by a reference position detection unit 66 described later.

As shown in FIGS. 1, 2, and 4, the left reel 21L forms one column at the left end in a three-row × three-column two-dimensional matrix displayed in the symbol display window 11. The right reel 21R forms one row at the right end in the two-dimensional matrix. The middle reel 21C forms a central row in the two-dimensional matrix. The reel 21 may be an image-type reel that displays the symbols on the liquid crystal display in place of the rotary reel of this example.
The liquid crystal display unit 53 includes a liquid crystal display as shown in FIGS. The liquid crystal display unit 53 displays various effect screens (not shown) for effecting a game.

Next, the slot machine 1 of this example has a mechanical configuration as shown in FIG.
A control board 3 that controls the overall operation of the slot machine 1 and each part that is electrically connected to the control board 3 will be described with reference to FIGS. 1 and 2. In addition to the above-described configuration, the control board 3 detects a inserted medal detection unit 63 that detects a medal inserted as a game medium, a reel drive unit 51 that rotates the reel 21, and a rotation position of the reel 21. A reference position detection unit 66, a medal payout unit 54 for paying out medals, various display units 55 and decoration lamp units 56 for producing a game, and a set value operation for setting a set value representing the degree of advantage of the player The unit 68 and the audio output unit 52 that controls the speaker 520 are electrically connected.

As shown in FIG. 1, the reel driving unit 51 includes a stepping motor (not shown) that can be controlled in units of steps, and is configured to rotationally drive the reel 21 by the rotational driving force of the stepping motor. The stepping motor rotates by one step for each control pulse fetched from the control board 3.
As shown in FIG. 1, the reference position detection unit 66 is configured to detect the passage of the reference position piece of each reel 21L, C, R and output a detection signal.

As shown in FIGS. 1 and 2, the inserted medal detection unit 63 is configured to output an insert signal each time a medal is inserted from the medal insertion slot 630.
As shown in FIG. 1, the medal payout unit 54 is configured to pay out a predetermined number of medals to the medal tray 15 under the control of the control board 3.
As shown in FIG. 1, the set value operation unit 68 is an operation unit for changing a set value for setting the winning combination probability of the bonus combination to 6 levels using the setting key 680.

  As shown in FIGS. 1 and 2, the various display units 55 include a payout amount display unit 551 and a credit display unit 552. The payout number display unit 551 is a display unit that displays the number of payout medals. The credit display unit 552 is a display unit that displays the number of medals credited (stored) by the credit function.

  As shown in FIGS. 1 and 2, the control board 3 includes a CPU 31, a ROM 33 and a RAM 34 as memory means, and an I / O unit 32 as an input / output interface. The CPU 31 executes a software program read from the ROM 33 to extract a random number extracting means 48 for extracting random numbers, a winning combination determining means 49 for determining a winning combination, a display control means 45 for controlling the reel 21, and an internal winning combination. An internal lottery means 42 for controlling, an internal control flag control means 41 for controlling the internal winning flag, a privilege granting means 43 for granting a privilege in accordance with the winning of BIG2, and a payout number counting means 46 for counting the number of medal payouts in the BIG1 state and the BIG2 state. The second bonus period shortening means 47 for shortening the generation period of the BIG2 state and the gaming state switching means 44 for switching the gaming state are configured to realize each function.

  As shown in FIG. 1, the ROM 33 as the memory means stores a winning random number table used by the internal lottery means 42 for the lottery of the internal winning combination. The winning random number table is defined for each set value 1 to 6 set using the set value operation unit 68. FIGS. 5A to 5C illustrate a winning random number table corresponding to the set value 6.

  FIGS. 5A to 5C show winning random number tables corresponding to three types of gaming states implemented in the slot machine 1. FIG. 5A shows a winning random number table applied to the normal state. FIG. 5B shows winning random numbers applied to the BIG2 state. FIG. 5C shows a winning random number table applied to the BIG1 state.

  The winning random number table in FIG. 5C replaces 100% of the random number range of the replay role in the winning random number table of FIG. 5A and almost 100% of the random number range of the small role loser with the winning random number of 10 sheets. It is a thing. Therefore, in the BIG1 state to which the winning random number table of FIG. 10C is applied, it is an advantageous state that any combination can win with a probability close to 100%.

  The winning random number table of FIG. 5B is obtained by deleting the winning random number of the bonus combination from the winning random number table of FIG. 5A and additionally setting the winning random number of the payout reducing combination. As described above, the payout reduction role is a role in which no medal is paid out. Therefore, the BIG2 state is set to a gaming state that is more disadvantageous to the player than the winning random number table of FIG.

  The random number extraction means 48 is a means for extracting random numbers by an internal calculation of the CPU 31, as shown in FIGS. The random number extraction means 48 of this example extracts a random number using the change start signal of the start lever 62 as a trigger signal and inputs it to the internal lottery means 42. Note that the random number extraction means 48 of this example extracts an integer belonging to the range of 0 to 65535 as a random number for the winning random number table.

  As shown in FIG. 1, the internal lottery means 42 collates the random number extracted by the random number extracting means 48 with a winning random number specified in the winning random number table to determine an internal winning combination, and an internal winning combination corresponding to the internal winning combination is determined. This is means for setting the winning flag to the on state. As shown in FIG. 3, the internal winning combination that the internal lottery means 42 of the present example draws is BIG 1 bonus combination (BIG 1), BIG 2 bonus combination (BIG 2), 15 combination “sun”, 10 combination “apple”, 8 There are eight types of roles: a “star” role, a “6 cherry” role, a replay role, and a payout reduction role. The payout reduction combination is defined only in the winning random number table of FIG. 5B applied to the BIG2 state, and can be won only in the BIG2 state.

  As shown in FIG. 1, the flag control means 41 is a means for controlling an internal winning flag representing a state where each winning combination can be won. For the internal winning flags such as a small role including a replay winning combination and a payout reducing winning combination, the flag control means 41 will start the next game regardless of whether or not a winning is made in the game in which the internal winning flag is set for the first time. Switch off. On the other hand, the flag control means 41 carries over the bonus flag to the next game until winning, and switches it off according to the bonus winning combination. Under the control of the flag control means 41 as described above, a small combination including a replay combination and a payout reduction combination that has not won a prize in the internally won game is so-called missing. On the other hand, once the bonus combination is won internally, the bonus finalized state is maintained until winning.

  The display control means 45 is a means for controlling the symbol variation of the reels 21L, 21C, 21R via the reel drive unit 51 as shown in FIGS. The display control means 45 starts the symbol variation of the reel 21 in response to the variation start signal and stops the symbol variation of the reel 21 in response to the variation stop signal. The display control means 45 inputs a control pulse to the stepping motor that forms the reel driving unit 51, and rotates the stepping motor by one step for each pulse. The display control unit 45 counts the number of control pulses input to the reel driving unit 51, that is, the number of steps rotated by the stepping motor. In particular, in this example, the number of steps generated after the latest detection signal is counted by resetting the number of steps to zero each time the detection signal of the reference position piece of each reel 21 is captured.

  As shown in FIG. 1, the display control means 45 performs so-called pull-in control that stops the symbols within the pull-in range determined by rules (rules for game machine authorization and type verification, etc.) on the winning line. It is configured. In this example, a range corresponding to a variation range for four symbols is set as the pull-in range. The display control means 45 can calculate the symbol currently displayed on each reel 21L, C, R (the symbol located on the winning line) based on the number of steps. The display control unit 45 calculates the bita symbol, which is the symbol 20 instantaneously positioned on the winning lines 211 to 215, based on the number of steps when the fluctuation stop signal is taken in, and follows the bitter symbol as the head. The four symbols 20 to be set are set as symbols within the pull-in range.

As shown in FIGS. 1 and 2, the winning combination determining means 49 displays the stepping motors (reel driving units 51) corresponding to the reels 21L, C, and R after the reels 21L, C, and R are stopped. The number of steps counted by the control means 45 is taken in. The winning combination determining means 49 obtains the type of the symbol 20 stopped on the winning lines 211 to 215 based on the number of steps, and determines whether or not a winning combination is established for the combination of the symbols 20. The winning combination determining means 49 outputs information indicating the number of medals to be paid out according to the type of winning combination (see FIG. 3) to the medal paying unit 54. Also, the winning combination determining means 49 of this example sets the payout reduction flag, which is a control flag for requesting the subtraction processing of the final payout number, to an ON state in accordance with the winning of the payout reducing combination.
The payout number counting means 46 is a means for accumulating the medal payout number in the BIG1 state or BIG2 state as the counter value of the payout number counter.

  As described above, the second bonus period shortening means 47 is a means for shortening the game period required for establishing the bonus end condition, that is, the occurrence period of the BIG2 state. The second bonus period shortening means 47 shortens the generation period of the BIG2 state according to the establishment of the predetermined condition. In this example, as a predetermined condition, winning of the payout reducing combination is set. The second bonus shortening means 47 of this example performs a process of subtracting 50 end payout numbers in accordance with the establishment of a payout reduction flag representing a payout reduction winning combination. As described above, the second bonus period shortening unit 47 reduces the period required for establishment of the bonus end condition by reducing the number of finished payouts in accordance with the payout of the payout reducing combination, thereby shortening the generation period of the BIG2 state.

  The gaming state switching means 44 is means for switching the gaming state executed by the slot machine 1. The gaming state switching means 44 manages the BIG1 flag corresponding to the BIG1 state and the BIG2 flag corresponding to the BIG2 state, and switches the gaming state according to the flag state of each flag. Specifically, in the slot machine 1 of this example, when the BIG1 flag is on and the BIG2 flag is off, the BIG1 state to which the winning random number table of FIG. 5C is applied is implemented. . When the BIG2 flag is on and the BIG1 flag is off, the BIG2 state to which the winning random number table of FIG. 5B is applied is implemented. When both the BIG1 flag and the BIG2 flag are in the off state, a normal state in which the winning random number table in FIG. 5A is applied is performed.

  The game state switching means 44 sets the BIG1 flag to the on state in response to the winning of BIG1, and switches the BIG1 flag to the off state when the medal payout number in the BIG1 state reaches the end payout number. Further, the game state switching means 44 sets the BIG2 flag to an on state in accordance with the winning of BIG2, and switches the BIG2 flag to an off state when the medal payout number in the BIG2 state reaches the end payout number.

  The said privilege provision means 43 is a means to provide a predetermined | prescribed privilege, when BIG2 wins according to the stop display of "7-7-BAR" which is a BIG2 symbol. In this example, a privilege that the next game can be executed free of charge by automatic insertion of medals is set as the predetermined privilege. That is, this privilege is the same as the privilege according to the winning of the replay role.

Next, the contents of the reel stop process executed when the slot machine 1 of the present example configured as described above stops the reel 21 will be described with reference to the flowchart shown in FIG.
In the reel stop process, it is first determined whether or not all the reels 21 are stopped as in step S101. When all the reels 21 are stopped, it is determined whether or not there is a winning combination established along each winning line as in step S102, and it is determined whether or not a small combination has been won as in step S103. The

  If the small combination has won, a prescribed number of medals (see FIG. 3) corresponding to the small combination are paid out as in step S104, and the process proceeds to step S105. On the other hand, if the small combination has not won (step S103), it is determined whether or not the replay combination has won as in step S114. When the replay winning combination is won, three medals are automatically inserted as in step S115, and the process proceeds to step S105.

  In step S105, it is determined whether or not the BIG1 flag or the BIG2 flag is on. If both flags are in the off state, the process proceeds to step S110, the small combination or replay combination flag is reset to the off state, and then the process returns. When the BIG1 flag corresponding to the BIG1 state or the BIG2 flag corresponding to the BIG2 state is on, the payout number of medals in step S104 is added to the payout number counter (step S106). In this example, three medals that are automatically inserted when the replay winning combination is won are also added to the payout number counter.

  In step S107, it is determined whether or not the counter value of the payout number counter is equal to or greater than the final payout number. If the counter value is equal to or greater than the final payout number, the BIG1 flag or BIG2 flag is set to the OFF state as in step S108. Then, the payout number counter is reset to zero as in step S109, and the small combination and replay combination flags are reset to the off state as in step S110.

  On the other hand, if neither a small combination nor a replay combination has been won (steps S103 and S114), it is determined whether or not BIG1 or BIG2 has won, as in step S125. If BIG1 or BIG2 has won, the BIG1 flag or BIG2 flag is set to the on state as in step S126, and the internal winning flag of BIG1 or BIG2 is reset to the off state as in step S127. When BIG2 is won by the stop display of the BIG2 symbol (step S128), three medals are automatically inserted as in step S129, and a state in which the next game can be started free of charge is set.

  If none of the small combination, replay combination, BIG1, BIG2 has won (steps S103, S114, S125), it is determined whether the payout reduction combination has won, as in step S136. If the payout reduction combination has won, the payout reduction flag is set to the on state, and the final payout number is subtracted by 50 (step S137). Thereafter, the payout reduction flag is reset to the OFF state as in step S138.

  As described above, in the slot machine 1 of this example, when BIG 2 wins in accordance with the stop display of the second bonus symbol (BIG 2 symbol), the next game of the winning game can be performed free of charge. Therefore, in this slot machine 1, there is little possibility that the game will be terminated and left as it is with the second bonus symbol (BIG2 symbol) stopped. Therefore, according to this slot machine 1, it is possible to direct other players to start the game without noticing that the player is in the BIG2 state.

In this example, a privilege that the next game can be executed free of charge is set as a predetermined privilege to be given after the game following the game in which the second bonus symbol is stopped and BIG 2 wins. . As the predetermined privilege, instead of this, for example, it is also possible to give a privilege such that the winning probability of a small role is set high in the next game. Further, the game in which the winning combination probability of the small role is set high may be a game executed after the next game instead of the next game. Furthermore, it is also possible to carry out a game with a small winning combination probability set for a predetermined game period after the next game.
Further, as described above, in this example, when the replay winning combination is won in the BIG1 state or the BIG2 state, the three payout numbers are added to the payout number counter. It can also be.

In this example, the payout reducing combination that can be won only in the BIG2 state is set, but the payout reducing combination can be omitted. Furthermore, it is possible to provide lottery means for determining whether or not to subtract the final payout number by lottery while omitting the payout reduction combination.
Furthermore, in this example, the BIG1 state or the BIG2 state is set to end when the medal payout number reaches 300, but when the number of games, the number of inserted games, or the number of acquired games reaches a specified number, The BIG2 state may be terminated.

FIG. 3 is a block diagram showing a mechanical configuration of the slot machine in the first embodiment. FIG. 3 is a front view illustrating an appearance of the slot machine according to the first embodiment. FIG. 3 is an explanatory diagram showing a slot machine role, a role symbol, and a payout medal number in the first embodiment. The expanded view which expands and shows the symbol arrangement | sequence of the reel in Example 1. FIG. Explanatory drawing which shows the winning random number table in each game state in Example 1. FIG. FIG. 3 is a flowchart showing a flow of reel stop processing in the first embodiment.

Explanation of symbols

1 Slot machine 11 Symbol display window 2 Symbol display (reel)
20 design 3 control board 41 flag control means 42 internal lottery means 43 privilege grant means 44 game state switching means 45 display control means 46 payout number counting means 47 second bonus period shortening means 48 random number extracting means 49 winning combination judging means 61 stop button 62 Start lever

Claims (3)

In response to the stop display of the first bonus symbol in the normal state, the player proceeds to the first bonus state, which is more advantageous to the player than in the normal state, while in the normal state in response to the stop display of the second bonus symbol in the normal state. A slot machine configured to shift to a second bonus state which is more disadvantageous to the player side and to return to a normal state when a bonus end condition scheduled in each bonus state is satisfied,
A slot machine comprising a privilege granting means for granting a predetermined privilege to the player after the game after the game ended when the second bonus symbol is stopped and displayed.   2. The slot machine according to claim 1, wherein the predetermined privilege is a privilege that the next game can be performed free of charge.   3. The second bonus period shortening means according to claim 1, further comprising a second bonus period shortening means configured to shorten a game period required for establishing the bonus ending condition in accordance with the establishment of the predetermined condition in the second bonus state. A slot machine featuring.

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