JP2008012007A - Slot machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slot machine which minimizes a reduction of game mediums, can continue a BB (big bonus) over a long time, and allows the player to obtain a large amount of put-out balls as an essential advantage of the BB. <P>SOLUTION: In the slot machine 1, reels are rotated by operating a start lever 4 and stopped by operating a stop button 5, and tokens are put out from a pattern arrangement on the reels. The slot machine is composed of a control means for controlling games, from a result of an internal lottery executed at every game, from an internal lottery table, and when the control means controls each game in the BB, i.e. in a special game state, to either a first game state, or to a second game state (RB) which is more advantageous for the player than in the first game state, and won at a predetermined lottery probability according to the result of the internal lottery executed at every game in the first game state, the control means stores a value obtained by [the maximum number of game medium bets (50) ÷ the maximum number of stored game mediums (3)] as a lottery probability in the second game state. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, after a game medium is inserted, a plurality of reels (rotating cylinders) that start to rotate by a start operation are stopped by a stop operation, and a design such as a picture or a character attached to each reel is predetermined on a winning line. With respect to the slot machine (rotational gaming machine) that can acquire game media according to the winning symbol by arranging the winning symbols of the game, in particular in a specific gaming state that is more advantageous to the player than the normal gaming state, The present invention relates to a slot machine that balances a payout game with a large amount payout and a digestion game for digesting the number of games, and can continue a specific gaming state as much as possible.

In general, a slot machine has a predetermined pattern, number, character, etc. on the outer peripheral surface when a player inserts a game medal (coin) or game ball (pachinko ball) as a game medium and presses a start lever. The reels (usually three reels) displaying the symbol of Fig. 1 start rotating, and after rotating at a constant speed, the reels are stopped by pressing the stop button at an arbitrary timing. A gaming machine in which a predetermined number of gaming media are paid out accordingly (see, for example, Patent Documents 1 and 2).
In such a slot machine, normally, in order to increase the fun of the game, a plurality of reels are automatically controlled with a certain probability so that the symbols attached to each reel are arranged in a predetermined arrangement on the winning line. A so-called “internal lottery” winning control that stops is performed.

In this internal lottery control, when the game is started by pressing the start lever, the internal winning lottery is automatically performed in the slot machine for each game, and the winning content is determined. Thus, the stop position of the reel is controlled. With this kind of stop control, when a certain content is won as a result of the internal lottery, regardless of the timing when the player presses the stop button, the symbols attached to each reel within a certain range are arranged according to the content of the winning (winning) (Stop arrangement) is automatically controlled so that a predetermined amount of game media corresponding to the winning arrangement is paid out.
More specifically, as a result of the internal lottery, if a winning content is won, a plurality of rotating reels are within a certain range (for example, within the range of 4 symbols from the position of the corresponding symbol) and the player's Regardless of the timing at which the stop button is pressed, the symbol will be in a predetermined winning arrangement (for example, “7, 7, 7”, “BAR, BAR, BAR”, etc.) according to the winning content on the predetermined winning line. Stop control (winning control) is performed.

When such reel stop control is performed, the timing at which the stop button of each reel is pressed stops symbols (“7”, “BAR”, etc.) constituting an array of a certain winning content on the winning line. Even if it deviates from the timing, if the deviation is within a certain range (within 4 frames from the symbol, etc.), the reel is stopped by mechanical control so that the symbol is positioned on a predetermined winning line. A predetermined winning arrangement is formed.
With such stop control, regardless of the skill of the game, if the player presses the stop button within a certain range, the reels are automatically stopped and stopped so that the symbols are in a predetermined winning arrangement. A predetermined amount of game media is paid out according to the winning arrangement. As a result, even a beginner or a person unfamiliar with a game can acquire a predetermined amount of winning game media with a certain probability.

Here, in the slot machine game in which a predetermined amount of game media is paid out by the reel stop control as described above, a specific game advantageous to the player and a normal game which is a game other than the specific game state are usually performed. It has come to be.
A normal game is a game in which a specific game is not performed. When the game is continuously performed, a game from the end of the specific game state until the start of the next specific game state is normally performed. It becomes a game.
In normal games, as a result of the internal lottery, “small role” in which a small amount of game media (for example, 2 to 4 medals, 7 cards, etc.) is won or paid out for each game, Stop control is performed for “re-game (replay, RP)” in which a game can be played and “losing” without paying out game media. The effect of the lottery result in the normal game is effective only for the game, and the effect disappears in the subsequent games.
In slot machine games, except for specific games (combined items) that occur with a certain probability, the repetition of normal games performed in units of one game (normal game state) is the principle.

The specific game (combination) is a control that is different from the normal game when a specific winning condition is established in the game or the next game when a predetermined winning combination is won as a result of internal drawing. The game is executed once or a plurality of times, and when a certain condition is satisfied, the specific gaming state is ended.
As the specific game, for example, there is a specific game state called a bonus game that is advantageous to the player. Examples of the bonus game include “big bonus game (BB)”, “regular bonus game (RB)”, and “single bonus game (SB)”.
In addition to bonus games, there are also specific games such as “single challenge time” and “challenge time”.

In this way, in a slot machine game, until a specific game (combination) that occurs with a certain probability occurs, a normal game performed in units of one game is repeated, and a specific game (combination) with a predetermined probability. When the occurrence occurs, the predetermined winning symbols are controlled so as to be aligned on the winning line with a high probability, whereby a large amount of game media that cannot be obtained in the normal gaming state can be obtained.
Therefore, in the slot machine game, it is the greatest attraction / experience that a large amount of game media that is advantageous to the player is paid out in a specific game state generated by such a jackpot (a specific game (winning)). It has become.

For example, in a BB (Big Bonus Game), when a BB combination is won as a result of an internal lottery performed for each game in the normal game state, a predetermined BB start symbol (for example, [7,7,7]) is obtained in the subsequent normal game. ) And is continued until a predetermined end condition is satisfied, and a gaming state advantageous to a player who can obtain a large amount of payout that cannot be obtained in the normal gaming state is performed over several games.
Specifically, when BB starts after winning BB, first, a gaming state (first gaming state) in which a small combination is generated with the same winning probability as the normal gaming state is performed. In this first gaming state, the RB role is won with high probability by an internal lottery performed for each game. When the RB role is won, a large number of payouts (for example, winning medals 15) An RB state (second game state) in which a small combination with a number of cards is won and won with a very high probability is performed.
The RB state ends depending on whether a predetermined end condition is satisfied, for example, whether a predetermined number of times (for example, 12 times) a game is played during the RB, or a predetermined number (for example, 8 times) of winning a small role, and thereafter After returning to the first gaming state, the first gaming state and the second gaming state (RB) are repeated until a predetermined BB end condition is satisfied (for example, the total number of payouts in the BB reaches a predetermined number). Is called.

As a result, the player can acquire a large amount of game media that cannot be obtained in the normal gaming state (for example, 300 or more prize medals) until the BB is finally ended.
A slot machine in which a specific gaming state that hits an RB with high probability in such a BB game is disclosed in Patent Document 3, for example.
In the slot machine described in Patent Document 3, a lottery is performed to determine whether or not to continue the BB game after the RB ends. However, the RB itself is won and generated with a very high probability during the BB game. It is set to be.

Japanese Patent Laid-Open No. 2000-342751 JP 2000-350809 A JP 2004-337266 A

However, in the conventional slot machine, in the above-mentioned BB (Big Bonus Game), when the BB starts and enters the first gaming state, it hits the second gaming state RB with a very high probability. For example, the winning probability of RB is set to be 1/2 to 1/3 (wins RB in 2 to 3 games).
For this reason, after the BB start, the second gaming state (RB) is started almost without playing the game in the first gaming state. Then, after the end of the second gaming state (RB), the RB is won again with a high probability in the first gaming state, so the second and subsequent RBs are immediately started again. As a result, the BB end condition Until is established, the game in the RB (second game state) is played and the BB is ended with almost no game in the first game state being played.

BB (Big Bonus Game) has great enjoyment, joy, superiority, etc. for playing a game in an advantageous gaming state called BB, in addition to the actual merit that a large amount of winnings and payouts can be obtained. It is attractive.
However, in the setting that hits the RB with a very high probability when entering the BB as in the conventional slot machine, as a result, the end condition of the BB is satisfied early and the BB ends. Even if a large amount of payout is obtained, the number of games that can be consumed during the BB is small, and the game time on the BB is short.
For this reason, the conventional BB game will end in no time, and the player wants to make the game time on the BB as long as possible after the start of the BB and to increase the number of games that can be played in the BB as much as possible There was a request.

Here, as a method of increasing the number of games in the BB and extending the game time in the BB, it is conceivable to set the winning probability of the RB in the BB extremely low. In this way, even if BB starts, it will only hit RB with a low probability, so the first gaming state will be repeated for a long time until RB is won, and BB end condition (BB It takes time to establish (the total number of payouts reaches the predetermined number), and as a result, the BB state continues for a long time.
However, in this method of simply reducing the RB winning probability, the game in the first gaming state is repeated for a long time, resulting in a decrease in medals on hand, for example, all credit medals (up to 50) are consumed. Even so, there is a situation where RB cannot be hit. When this happens, despite the fact that BB is originally a game state that is advantageous to the player, there will be no medals on hand, and there will be an abnormal situation where additional medals must be purchased to continue the game. Thus, even if the BB state continues for a long time, it is no longer an attractive gaming state for the player.

For this reason, by balancing the number of games in the first gaming state and the second gaming state, the BB can be continued for a long time, the game medium can be reduced, and the original large payout can be obtained. The slot machine game that can enjoy the game itself in the BB has been strongly desired, but no slot machine that can meet such a request has been proposed so far.
Therefore, as a result of earnest research, the inventors of the present application can balance the first gaming state and the second gaming state by setting the winning probability of the RB generated in the BB to a predetermined value. In this way, the present invention can realize an attractive slot machine game that does not exist in the past, which can continue the BB for a long time while minimizing the decrease in game media, and can acquire a large amount of BB original payout. It came to come up with.

  That is, the present invention has been proposed in order to solve the problems of the conventional techniques as described above, and in a specific game state that is more advantageous to the player than the normal game state, By setting the winning probability to a predetermined value, a balance between a payout game with a large payout and a digest game to digest the number of games is balanced, and a specific gaming state is continued as much as possible while suppressing a decrease in game media. It is an object of the present invention to provide a slot machine suitable for playing a big bonus game (BB) as a specific gaming state.

In order to achieve the above object, according to the slot machine of the present invention, as described in claim 1, a plurality of reels rotate by a start operation, each reel that rotates by a stop operation stops, and each reel that stops is stopped. A slot machine in which a number of game media according to the arrangement of symbols is paid out, and an internal lottery is performed for each game based on a predetermined lottery probability, and each game is played in a normal gaming state according to the result of the internal lottery. And control means for controlling the game state to a specific game state that is more advantageous to the player than the normal game state, wherein the control means is configured to change each game in the specific game state to a first game state and the first game state. In accordance with the result of the internal lottery performed for each game in the game, the game is controlled to a second gaming state that is more advantageous to the player than the first gaming state, with a predetermined lottery probability. As serial lottery probability of a second game condition, it is constituted to store the value obtained by Equation 1 below.
Formula 1: Probability of lottery in the second gaming state ≒ number of game media bets ÷ maximum number of game media stored

In particular, in the slot machine of the present invention, as described in claim 2, the control means stores the value obtained by the following expression 2 as the lottery probability of the second gaming state. preferable.
Formula 2: 1 / number of possible games in the second gaming state ≧ lottery probability of the second gaming state ≧ game media betting number ÷ maximum game media storage Further, as described in claim 3, the control means includes It is preferable that a value obtained by the following Equation 3 is stored as a lottery probability in the second gaming state.
Formula 3: Lottery probability in the second gaming state ≒ maximum number of game media bets ÷ maximum number of game media storage

In the slot machine of the present invention, as described in claim 4, the control means stores, as the lottery probability of the second gaming state, a different lottery probability depending on the number of bets on the game medium. can do.
In particular, as described in claim 5, it is preferable that the maximum number of game media stored is 50 and the maximum number of game media bets is three.

  In the slot machine of the present invention, as defined in claim 6, the specific gaming state is a big bonus state, the first gaming state is a normal state in the big bonus state, and the second gaming state is It is preferable that the gaming state is a regular bonus state in the big bonus.

  According to the slot machine of the present invention configured as described above, in a specific gaming state based on the maximum storage number of game media (for example, 50 medals) and the number of game media bets (for example, 1 to 3 medals). Find the winning probability of an RB that occurs in a certain BB (eg 3 ÷ 50 ≒ 1/16 for 3 bets, 2 ÷ 50 ≒ 1/25 for 2 bets, 1 bet 1 ÷ 50≈1 / 50), this value or a value with a slightly higher probability can be stored and set as the winning probability of the RB generated in the BB.

By setting such a value, there is a possibility that RB generated during BB will be won or generated before the maximum number of games is played, regardless of the number of bets played. More specifically, for example, if the number of medals stored is the maximum (50), there is a high possibility that an RB has occurred before the stored medals run out.
As a result, the first gaming state before the occurrence of RB is such that the maximum number of games can be consumed as long as the game medium on hand is not lost, and RB wins / occurs afterwards. You will be able to enjoy the benefits of mass payments.
In particular, a value obtained by dividing the maximum bet number of game media (three medals) by the maximum storage number (3 / 50≈1 / By storing and setting 16) as the winning probability of the RB occurring in the BB, the effect of the present invention can be provided to more players.

In addition, the value obtained by dividing the betting number of game media by the maximum storage number is easy for the player to understand the contents and grounds, and "If three bets are bet, RB will be won within 16 games." It can be understood with sensibility and intuition that, even if one bet is played, RB can be won if the game is played 50 times.
As a result, the player can play the game with confidence by knowing such a winning probability, and the psychological merit given to the player is great. As a result, there is a sense of security and reliability that does not exist in the past. High slot machine games can be provided.

In the present invention, based on the number of possible games in the second gaming state (for example, 8 to 12 games), the winning probability of RB occurring in the BB in the specific gaming state is obtained, and this value is slightly lower than that. The value that becomes the probability is stored and set as the winning probability of the RB generated in the BB.
In general, the RB in the BB is ended depending on whether a predetermined number of times (for example, 12 times) a game is performed during the RB, or whether a predetermined number of times (for example, 8 times) is won in a small role. Returns to the first gaming state, and thereafter, the first gaming state and the second gaming state (RB) are repeated until a predetermined BB end condition is satisfied (for example, the total number of payouts in the BB reaches a predetermined number). Done.
Therefore, in the present invention, the reciprocal of the number of possible games (8-12 times) that will be played during the RB is obtained, and this value is set as the RB occurrence probability in the BB. The balance between the number of games played (number of games in the first gaming state) and the number of games played during RB generation (number of games in the second gaming state) can be maintained.

As described above, in the slot machine of the present invention, the first gaming state and the second gaming in the specific gaming state are set by setting the lower limit value and the upper limit value of the winning probability of the RB occurring in the BB to optimum values. The state can be balanced, and the game in the first game state can be maximized while minimizing the decrease in game media.
As a result, it is possible to realize an attractive slot machine game that does not exist in the past, in which a game of the entire BB can be continued for a long time and a large amount of BB original payout can be obtained.

In addition, in the slot machine of the present invention that can make the first gaming state that is the digestion gaming state in the BB as long as possible in this way, the first gaming state that lasts for a certain period of time performs an effect using the liquid crystal display unit or the like. For example, it is possible to continuously and continuously perform an effect that excites the expectation for the RB generated thereafter in the first gaming state.
In addition, since the first gaming state is performed with continuity in this way, it becomes easy to change the production contents (music, video display, etc.) between the first gaming state and the second gaming state, and there is a sharpness. Production and exciting production can be performed.
Such control of the specific gaming state according to the present invention can be realized simply by setting a predetermined lottery probability in the internal lottery table, and can be immediately applied to existing slot machines. It can be widely offered as a slot machine with excellent versatility and expandability at low cost.

According to the slot machine of the present invention, in a specific gaming state that is more advantageous to the player than the normal gaming state, by setting the winning probability of a payout game with a large payout to a predetermined value, The specific game state can be continued as much as possible while balancing the digest game for digesting the number of games and suppressing the decrease of the game media.
Thereby, it is possible to realize a slot machine that can provide an attractive specific game that is not conventionally available, which is particularly suitable when a big bonus game (BB) is performed as the specific game state.

Hereinafter, a preferred embodiment of a slot machine according to the present invention will be described with reference to the drawings.
Here, the slot machine of the present invention shown in the following embodiments is operated by a computer controlled by a program. The program sends a command to each component of the computer to perform predetermined processing such as reel rotation start processing, reel stop control processing, internal lottery processing, and the like. Thus, each process and operation in the slot machine according to the present invention is realized by specific means in which the program and the computer cooperate. The program is stored in advance in a recording medium such as a ROM or RAM, and is executed by causing the computer to read the program from a recording medium mounted on the computer. However, the program may be read by the computer via a communication line, for example. . Further, the recording medium for storing the program can be constituted by, for example, a semiconductor memory, a magnetic disk, an optical disk, or any other recording means readable by a computer.

[Slot machine body]
First, the configuration of a slot machine main body according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a schematic front view showing a slot machine according to an embodiment of the present invention, and FIG. 2 is a schematic perspective view showing an internal configuration of the slot machine according to the embodiment.
As shown in these drawings, the slot machine 1 of the present embodiment acquires a winning game medium by rotating a plurality of reels 21a, 21b, 21c provided in the slot machine 1, as in the conventional slot machine. It constitutes a swing type game machine that can be used.
In the slot machine 1 of the present embodiment, as will be described later, a BB (Big Bonus Game) is played as a specific gaming state, and the winning probability of winning / occurring RB in the BB is determined as a game. By setting the optimal value based on the number of bets and the maximum number of stored media, and the number of possible games in the RB, the entire BB game can be continued for a long time while suppressing the decrease in the game media, and the BB's original high volume A payout is one that can be earned.

Specifically, the slot machine 1 of the present embodiment is configured in a casing shape that can accommodate a control unit 10 configured by a microcomputer or the like and necessary machines, devices, and the like. The side is covered with the front door 1a so that opening and closing is possible.
As shown in FIGS. 1 and 2, the front door 1a is a door body that can be freely opened and closed to the casing of the slot machine 1 via a hinge or the like. The front door 1a is provided with a front panel 2 and other parts. The front portion of the slot machine 1 is configured.

A display L is provided at the top of the front door 1a, and speakers 9 are provided on the left and right sides of the display L.
The indicator L is a display means consisting of a lamp that lights and flashes, a liquid crystal display device, etc., and the lamp is lit when winning a bonus game, winning various prizes, winning a prize, or paying out game media. A predetermined effect is performed by blinking or displaying an effect image (including a moving image and a still image) on the liquid crystal display device.
The effect by the display L is performed in conjunction with the effect by the sound from the speaker 9 or independently of the effect by the sound by the speaker 9.
The display L is driven and controlled by a display drive circuit 18 provided in the control unit 10 (see FIG. 4).

The speaker 9 generates various sounds such as a melody sound and a message sound to the player. Through the speaker 9, together with the display L described above or separately from the display L. A predetermined effect by sound is performed.
For example, when an internal lottery is performed by the control unit 10 and a predetermined jackpot or small role is won, or when a winning symbol is aligned and a big winning or small role is won, a predetermined effect sound or internal hit from the speaker 9 is obtained. The voice etc. which announces will come out.
The sound generated from the speaker 9 is generated and output to the sound circuit 17 provided in the control unit 10 (see FIG. 4).

In the present embodiment, a specific effect is performed in a small role game (first game state) and a JAC game (RB: second game state) in a BB (big bonus game) described later. The specific effect is also performed through the display L and the speaker 9.
Here, it is preferable that the effect in the BB small role game or the JAC game is a specific effect that is not performed in a normal game. For example, in the present embodiment, the small role game in the BB is set to continue for a certain period of time. Therefore, a specific effect that is not performed in the normal game is performed only in the small role game of the BB, so that it is usually viewed. It is possible to see productions that cannot be performed, and to increase the satisfaction of the player in terms of production as well as the joy and excitement of winning the BB prize.

Further, it is preferable that the effects in the small role game and the JAC game in the BB are made different from each other. For example, in a small role game that lasts for a certain period of time, it is possible to increase the expectation and excitement for the occurrence of RB by making the presentation gradually progress as the number of games passes. By performing an exciting production, it is possible to congratulate the RB entry and stir up excitement and joy.
In this way, in the slot machine 1 of the present embodiment, by combining the presentation through the display L and the speaker 9 and the continuous small role game, there is an unprecedented fun, satisfaction and fulfillment. Can be given.

The front panel 2 is provided with a display window 3 at a substantially central portion so that the reels 21a to 21c in the housing can be visually recognized from the outside.
The display window 3 is a window for visual recognition of three reels (left) 21a, reel (middle) 21b, and reel (right) 21c (see FIG. 2) disposed in the slot machine 1, and is usually colorless and transparent. Or it consists of a colored transparent resin panel, etc., and among a plurality of symbols drawn around each of the three reels 21, a plurality of (usually three) symbols that are adjacent in the vertical direction can be visually recognized and identified. It is like that.
A predetermined winning line is set for the symbol combination of the reels 21 visually recognized through the display window 3, and the predetermined winning line is determined according to the number of bets of medals and is stopped along the winning line. The winning of the game is determined by the combination of symbols of the reels 21a to 21c arranged.

Below the display window 3 of the front panel 2, an internal winning notification section 2a, a stored number display section 2b, a status display section 2c, and an acquired number display section 2d are provided.
The internal hit notification unit 2a is a lamp that lights or blinks when a predetermined big hit is won as a result of the internal lottery in the control unit 10 of the slot machine 1, and a translucent display unit that translucently displays a picture or the like by the light of the lamp And have.
The stored number display unit 2b, the state display unit 2c, and the acquired number display unit 2d are each composed of a 7-segment LED or the like, and a predetermined numerical value is displayed.
That is, the stored number display unit 2b displays the number of stored medals, the state display unit 2c displays the total number of paid-out medals and the number of digested games in the specific game state, and the acquired number display unit 2d displays the normal game and the specific number The number of payouts at the time of each payout in the game is displayed. These display units of the internal notification unit 2a, the stored number display unit 2b, the state display unit 2c, and the acquired number display unit 2d are driven and controlled by a display unit drive circuit 16 provided in the control unit 10 ( (See FIG. 4).

Buttons for the player to operate, such as a start lever 4, a stop button 5, a medal slot 6, a checkout button 6b, and a BET button 7, are provided in the substantially central portion of the front door 1a on the lower side of the front panel 2. It has been.
The start lever 4 is a game start means for starting the rotation of the three reels 21. When the start lever 4 is pressed by a player's operation, a start signal is output to the control unit 10 described later (FIG. 4), the reels 21a to 21c inside the main body are rotated simultaneously or sequentially.
Further, when a start signal is input by depressing the start lever 4, an internal lottery described later is performed in the control unit 10.

The stop button 5 is a stop means for stopping the rotating reel 21 and includes three stop buttons (left) provided corresponding to the three reels (left) 21a, the reel (middle) 21b, and the reel (right) 21c. 5a, a stop button (middle) 5b, and a stop button (right) 5c. When the stop buttons 5a, 5b, 5c are pressed at any timing of the player, a stop signal is output to the control unit 10 (see FIG. 4), and the corresponding reels 21a, 21b, 21c are rotated. It is supposed to be stopped.
Therefore, when the player operates the start lever 4 and the stop button 5, the three reels 21a to 21c are rotated and stopped, and the symbols attached to the reels 21a to 21c are arranged in a predetermined winning arrangement. You can play slot machine games.

The medal slot 6 is a slot for receiving medals as game media used in the game, and a game can be played according to the number of medals inserted from the medal slot 6.
As shown in FIG. 2, a medal selector 6a is provided on the inside of the main body of the medal insertion slot 6. The number of inserted medals is counted, and a medal signal indicating the number of medals is output to the control unit 10 inside the main body. It has come to be. As a result, if one medal is inserted from the medal slot 6, a one-bet game can be played, a two-bet game can be played if two can be inserted, and a three-bet (MAXBET) game can be performed if three can be inserted. It becomes like this.

Further, the number of medals inserted from the medal slot 6 is stored in the RAM 12 in the control unit 10 as the number of stored medals (see FIG. 4), and a plurality of medals are stored in advance prior to the start of the game. A medal can be inserted and stored and stored as a stored medal.
Specifically, when three medals are inserted and further medals are inserted from the medal insertion slot 6, the fourth and subsequent medals are stored medals and a predetermined number (for example, a maximum of 50) is obtained. Stored and memorized. If there is a winning payout, the winning medals are stored as stored medals up to the maximum number of stored medals. The number of stored medals is displayed as a numerical value on the stored number display portion 2b of the front panel 2.

The adjustment button 6b is a switch for adjusting the stored medal at the end of the game.
When the settlement button 6b is pressed, medals for the stored medals are discharged from the medal payout device 30 to the game medal payout port 8, and the stored medal count data stored in the RAM 12 is also deleted.
In addition, as the stored medal is settled, the numerical value of the stored number display portion 2b is also displayed as zero.

The medal BET button (insertion button) 7 is a medal input that inserts (BETs) a medal to be used (betting) in the game from among the stored medals when the medal inserted from the medal insertion slot 6 has a stored medal. It is a switch for.
Specifically, a MAXBET button 7a for betting three pieces that inserts the maximum number of medals (usually three pieces) that can be inserted into a game by one press from a stored medal, and one medal by one press. 1 BET button 7b for betting one piece from the stored medal.
Each time the 1BET button 7b is pressed, one bet, two bets, three bets, and the number of BETs increase.
When the BET button 7 is pressed, a medal signal is output to the control unit 10 (see FIG. 4), and the same number of medals are inserted into the game from the stored medals stored in the RAM 12. Become.
When a stored medal is inserted, the number of stored medals in the memory is subtracted by the inserted number, and the display numerical value of the stored number display unit 2b is also decreased by the inserted number.

At the bottom of the slot machine 1, a game medal payout port 8 is provided.
In the game medal payout opening 8, when the reels 21 stopped by pressing the stop button 5 are in a predetermined winning arrangement, the number of winning medals according to the winning arrangement discharged from the medal payout device 30 in the housing is obtained. It is to be paid out. The number of medals paid out is displayed on the acquired number display part 2d constituting the state display part below the display window 3 of the reel.

Inside the casing of the slot machine 1, as shown in FIG. 2, there are a drum unit 20 that rotates and stops the three reels 21a to 21c, a medal payout device 30 that pays out medals, and other machines and devices. Is provided.
The drum unit 20 rotatably holds the three reels 21a, 21b, and 21c and the three reels 21a to 21c, and rotates the stepping motors 23a to 23c corresponding to the reels 21a to 21c. A motor drive circuit 22 that controls the start of rotation of 21c, constant speed rotation and stop, and a rotation position detection unit that detects a stop position of each of the stopped reels 21a to 21c and outputs a position signal to the control unit 10 24 (see FIG. 4).

As in the existing slot machine, the reel 21 is composed of a cylindrical portion having a plurality of (usually 21) patterns and characters such as characters on the outer periphery, and is rotated in the vertical direction (vertical direction in the drawing). A reel (left) 21a, a reel (middle) 21b, and a reel (right) 21c are arranged in a row in the horizontal direction (left-right direction in the drawing) (see FIG. 2).
As shown in FIG. 3, the symbols provided on the reels 21a to 21c are arranged at equal intervals for each reel. For example, “7”, “bell”, “clown”, “grape”, “cherry”, Patterns and characters such as “Replay” and “BAR”, and other symbols indicating the characters and fruits of the slot machine are displayed in a predetermined order. Normally, 21 symbols are displayed on each reel. It has become.
The symbols on the reels 21a to 21c are stopped in a predetermined combination along the winning line of the display window 3 described above by pressing the corresponding stop buttons 5a to 5c, and winning is determined. The

The three reels 21 a to 21 c are driven and stopped by the controller 10, the motor drive circuit 22 of the drum unit 20, and the rotation position detector 24.
In the drum unit 20, the three reels 21a to 21c are rotatably held by the corresponding three stepping motors 23a to 23c, respectively, and the start lever 4 and the stop buttons 5a to 5c are pressed to operate the motor drive circuit. 22 inputs a pulse (drive) signal from the control unit 10 to drive the stepping motors 23a to 23c (see FIG. 4), and controls the start, constant speed rotation and stop of the rotation of the corresponding reels 21a to 21c. Is called.

Then, the stop position of the reel 21 is controlled according to the result of the internal lottery performed by the control unit 10, regardless of the timing at which the player presses the stop button 5, that is, the pressing timing of each of the stop buttons 5 a to 5 c. Even if there is a deviation, the reel 21 is controlled to stop so that the corresponding symbol stops on the winning line within a certain stop control range (usually within a range of five symbols).
As a result, the control unit 10 performs an internal drawing in response to the start signal from the start lever 4, and the drum unit 20 is controlled by the control signal from the control unit 10, so that the stop button 5 is pressed. First, the reels 21a, 21b, and 21c are stopped so that symbols corresponding to the lottery result are arranged on the winning line within a predetermined stop control range.

The medal payout device 30 is a medal payout device disposed below the drum unit 20 in the housing. The medal payout device 30 drives the hopper 31 for storing payout medals and discharges a predetermined number of medals. A hopper driving circuit 32 for detecting the number of medals discharged, and a medal detecting unit 33 for outputting a payout number signal to the control unit 10 (see FIG. 4).
The medals discharged from the medal payout device 30 are paid out to the front of the slot machine from the game medal payout opening 8 of the front door 1a and provided to the player.

[Control means]
Next, the control unit 10 that controls the slot machine 1 of the present embodiment will be described with reference to FIG.
FIG. 4 is a block diagram showing an outline of a control unit that is a control unit of the slot machine according to the present embodiment and its peripheral configuration.
As shown in the figure, the control unit 10 of the present embodiment is a control means for controlling each part of the above-described slot machine 1, and has a microcomputer having an IC, a memory, various circuit boards, and the like. Has been.
Specifically, the control unit 10 includes a CPU 11, a RAM 12 and a ROM 13 serving as storage means, a clock generation circuit 14 that generates a reference clock, a random number generation circuit 15 that generates a random number for internal lottery, and the display units 2a to 2d. The display unit drive circuit 16 for driving the sound, the sound circuit 17 for generating sound through the speaker 9, the display unit drive circuit 18 for driving the display unit L for production, and the like.

First, the control unit 10 inputs a medal signal from the medal selector 6a and a medal signal from the bet button 7 (MAX bet button 7a, 1-bet button 7b), and the number of medals inserted from the medal slot 6 or The number of inserted medals betted by pressing the bet button 7 is confirmed, and the number of stored medals stored in the RAM 12 is decreased based on the medal signal from the bet button 7. As a result, the number of bets 1 to 3 bet on each game is determined.
As a result, one game can be started.

Next, the control unit 10 inputs a start signal from the start lever 4 and a stop signal from the stop buttons 5a to 5c, thereby outputting a pulse (drive) signal to be a control signal for the reel 21 to the drum unit 20, The reels 21a to 21c are rotated and stopped. Accordingly, in the drum unit 20, the reels 21a to 21c are rotated by the start signal, and the corresponding reels 21a to 21c are stopped by the stop signal input by pressing the stop buttons 5a to 5c.
Further, the control unit 10 recognizes the stop symbol of each of the reels 21a to 21c based on the marker signal input from the drum unit 20, and determines whether or not the stop symbol is a predetermined winning arrangement. As a result, when the predetermined winning arrangement is selected, the medal payout process according to the type of winning is performed.

And the control part 10 which performs the above game control performs an internal lottery for every game, and controls the game according to the result of the internal lottery.
The internal lottery is a lottery process performed for each game, and is executed by a random number generation circuit 15 including a counter IC or the like and a random number table preset and stored in the ROM 13, and the extracted random number is stored in any random number table. Whether the content belongs to an area is determined and won as a lottery result.
Specifically, in the internal lottery, the random number generation circuit 15 generates a random number within a predetermined random number range (for example, 0 to 16383), and the winning content is determined based on the generated random number value. It has become.

FIG. 5 shows an example of a random number table used for the internal lottery of the slot machine according to the present embodiment. FIG. 4A shows a random number table used in a normal gaming state, and FIG. 4B shows a pie chart of the random number table shown in FIG.
The random number table is a data table stored in the ROM 13, and as shown in FIG. 5, predetermined winning content is assigned corresponding to the range (0 to 16383, etc.) that the random number value can take.

The winning contents set in the random number table include an accessory (bonus game, for example, BB, RB, etc.), a small role (for example, a grape role, a bell role, a clown role, a cherry role, etc.), a replay role (replay) In the random number table, the winning content is assigned corresponding to the range of the random number width.
For example, in the random number table illustrated in FIG. 5, 0 to 10921: Loss, 10922 to 10980: BB, 10981 to 11006: RB, 11007 to 13850: Grape role, 13851 to 13866: Bell role, 13867 to 13882: Clown role, 13883 ... 14138: Cherry role, 14139-16383: Replay role, etc., so that each content is assigned with a predetermined probability.

Here, the above random number table is one in which each winning content is assigned within the range of random values. That is, the random number table is a correspondence table between random value and winning contents. The winning probability of each winning content is set according to how the random number table is allocated.
For example, the winning probability of a winning content (for example, BB) is a number (here, approximately 1 / 2777.7) obtained by dividing the number of allocated random numbers (for example, 59) by the total number of random numbers (16384). (See FIG. 5 (a) and FIG. 6 (a)).

A lottery probability table is set by calculating the winning probability of each winning content by such calculation. Specifically, a lottery probability table as shown in FIG. 6 is set, and based on this lottery probability table. The allocation of the random number table described above is determined.
FIG. 6A is a drawing probability table used in the normal gaming state, and FIG. 6B is a drawing probability table used in the small role game (first gaming state) in the specific gaming state (BB). This is an example, and predetermined lottery probabilities are set and stored in accordance with the specified number (the number of bets).
FIG. 6C is a lottery probability table used in the small role game (first gaming state) in the specific gaming state (BB), and is different from the lottery probability table in FIG. 6B. This is an example in the case of setting.
Thus, in this embodiment, the internal lottery table includes both a lottery probability table and a random number table.

By setting the internal lottery table as described above, one random number is extracted from the random number generation circuit 15 at the moment when the start lever 4 is pressed, and the extracted random number is collated with the value of the random number table. Thus, the winning content to which the random number belongs is determined as the lottery result.
When the winning content is determined, the stop position of the reel 21 is controlled in accordance with the winning content, and when a winning content is reached, each reel 21 within a certain range regardless of the timing when the player presses the stop button 5. The symbols attached to are controlled to stop so that the symbols are arranged according to the winning contents.

In the slot machine 1 of the present embodiment in which the game is performed by controlling the reel 21 to stop based on the result of the internal lottery as described above, the control unit 10 controls the specific game advantageous to the player, A normal game that is a game other than the specific game is played.
The specific game (combination) is a control that is different from the normal game when a specific winning condition is established in the game or the next game when a predetermined winning combination is won as a result of internal drawing. The game is executed once or a plurality of times, and the specific gaming state is ended when a certain condition is satisfied.

As the specific game, for example, there is a specific game state that is advantageous to the player called a bonus game, and examples thereof include “regular bonus game (RB)” and “big bonus game (BB)”.
In addition to the regular bonus (RB) and the big bonus (BB), for example, a single bonus game (SB), a single challenge time (SCT), a challenge time (CT), etc., are provided as specific games (acts). Sometimes.
In the present embodiment, as shown in FIG. 5 and FIG. 6A, as a specific gaming state, a big bonus (BB: an accessory continuous operating device related to a first type special accessory) and a regular bonus (RB: first) One kind of special character) is set, and it is won and executed with a predetermined lottery probability.

On the other hand, a normal game is a game in which a specific game state has not started, and when the game is continuously performed, after the end of the specific game state, the next specific game state is started. The game becomes a normal game.
In normal games, as a result of the internal lottery, “small role” in which a small amount of game media (for example, 2 to 4 medals, 7 cards, etc.) is won or paid out for each game, Stop control is performed for “replay” in which a game can be played and “losing” in which no game media is paid out. The effect of the lottery result in the normal game is effective as long as the game, and the effect disappears in subsequent games. Also in the game of the slot machine 1 according to the present embodiment, the repetition of the normal game performed in units of one game is a principle except for a specific game (a combination) that occurs with a certain probability.

In such a normal game, as a result of the internal lottery, a regular bonus (RB), a big bonus (BB), etc. are hit with a predetermined probability (see FIGS. 5 and 6A). The reel stop control is performed according to the contents of these winnings.
Therefore, when a predetermined game is arranged on the winning line and a specific game (combination) is won by the reel stop control, the specific game state is started from the next game, and control that is advantageous to the player is performed. It will be.
On the other hand, even if the reel stop control is performed, if the predetermined symbols are not aligned on the winning line and the specific game (combination) is not won, the specific game state is not started and the next game continues to be the normal game. A game according to the state will be performed.

Note that a normal game is a game from the end of a specific game state to the start of the next specific game state, but after the end of one specific game state, another specific game state is continuously played. In this case, the normal game state is entered from the game after the completion of all two or more consecutive specific game states.
For example, if the replay time (RT) continues after the big bonus (BB) ends, there is no normal game between the big bonus (BB) and the replay time (RT). In this case, the game after the replay time (RT) ends is a normal game.

And in this embodiment, as shown in FIG.5 and FIG.6 (a), as a specific game state, a big bonus (BB: the accessory continuous operation apparatus which concerns on a 1st type special accessory), and a regular bonus (RB) : A predetermined lottery probability is set so as to be performed.
In the regular bonus (RB) or big bonus (BB) that will be in a specific gaming state, if the regular bonus (RB) or big bonus (BB) that allows a large amount of gaming media to be paid out as a result of internal drawing, The winning effect is maintained until the symbol of the reel reaches a predetermined winning arrangement (for example, “7, 7, 7”) in the game or subsequent games, and the reel stops at the winning symbol and the “winning (start) ””, The player enters a specific game state for one or several games thereafter, and the game media is paid out at a high game play rate (game media acquisition rate) that cannot be obtained during normal games.

Specifically, when a regular bonus (RB) is won or won, control for a bonus game in which several games (for example, 12 games) are set as one set is performed. The lottery and reel are controlled so that a predetermined symbol arrangement of the combination is continuously arranged, and for example, 100 or more game media are paid out. The RB ends depending on whether a predetermined number of games (for example, 12 times) are played during the RB or whether a small role is won a predetermined number of times (for example, 8 times).
When a big bonus (BB) is won or won, the above-mentioned regular bonus (RB) is won with a predetermined lottery probability until the predetermined end condition is satisfied, and the RB game is controlled repeatedly. The game is controlled so that a large number of hundreds of game media are paid out.
In this embodiment, by setting the RB lottery probability performed during this BB to a predetermined value, the balance between the RB and other digestion games in the BB is balanced and compared with the conventional case. Thus, BB is performed for a longer time.

Hereinafter, the BB (big bonus game) performed in the present embodiment will be described more specifically with reference to FIGS. 6 and 7.
As a result of the internal lottery performed for each game in the normal gaming state (see FIG. 6A), if the player hits the BB with a predetermined probability (for example, 1 / 2777.7), then the BB start symbol (for example, [[ 7 · 7 · 7]) are aligned, and BB starts (see FIG. 7).
Here, the drawing probability of the BB can be made different according to the specified number (the number of bets), or the same drawing probability can be set for all the specified numbers (the number of bets). In this embodiment, as shown in FIG. 6A, the BB lottery probability is varied according to the specified number (the number of bets) (one bet: 1 / 8192.0, two bets: 1 / 1024.0, 3 bets: 1 / 2777.7). Therefore, in this embodiment, the greater the number of bets, the higher the probability of winning a BB.

When BB starts, first, a small role is generated with a winning probability similar to that in the normal gaming state (see FIG. 6B), and a so-called small role game (first gaming state) is played in the gaming state.
In this small role game, an internal lottery is performed for each game, and RB is hit with a predetermined probability in the internal lottery (see FIG. 6B).
As a result of this internal lottery, when an RB is won, an RB state (second game state) in which a small role with a large amount of payout (for example, 15 winning medals) is won and won with a very high probability over the next several games (second game state), so-called A JAC game is played.
This RB (JAC game) ends depending on whether a predetermined end condition is satisfied, for example, whether a predetermined number of times (for example, 12 times) a game is played during the RB, or a predetermined number of times (for example, 8 times) of which a small role is won. Thereafter, the small game is returned to the above-described small game (first game state), and thereafter, until a predetermined BB end condition is satisfied (for example, the total number of payouts in the BB reaches a predetermined number), the small game and the JAC game (RB ) Is repeatedly performed (see FIG. 7).
As a result, the player can acquire a large amount of game media that cannot be obtained in the normal gaming state (for example, 300 or more prize medals) until the BB is finally ended.

In the present embodiment, as the RB lottery probability set in the BB internal lottery table (lottery probability table) shown in FIG. 6B, the values obtained by the following formulas 1 and 2 are set: It has come to be remembered.
Formula 1: RB draw probability ≒ medal bet number ÷ maximum medal reserve number Formula 2: 1 ÷ number of possible games in RB ≥ RB draw probability ≥ medal bet number ÷ maximum medal reserve number In this case, the above RB draw probability In particular, it is preferable to set a value obtained by the following Equation 3.
Formula 3: RB lottery probability ≧ maximum medal betting number ÷ maximum medal reserve number

That is, in the present embodiment, a value obtained by dividing the bet number of medals (the number of bets) by the maximum number of stored medals (the number of credits) is obtained as a winning probability of an RB generated in the BB (in the case of one bet). 1 ÷ 50 ≒ 1/50, 2 ÷ 50 ≒ 1/25 in the case of 2 bets, 3 ÷ 50 ≒ 1/16 in the case of 3 bets, this value or a slightly higher probability The value is stored and set as the lower limit value of the RB winning probability occurring in BB.
Also, as the upper limit of the winning probability of RB, the reciprocal (1/8 to 1/12) of the number of possible games (8 to 12 times) that will be played during RB is obtained, and this value is used as the probability of occurrence of RB in BB. Is set as.

Specifically, in this embodiment, as shown in FIG. 6B, the winning probability of RB in BB is “1 / 50.0” in the case of 1 bet, and in the case of 2 bets. Is set to “1 / 25.0” and “1 / 16.0” in the case of three bets. Although not shown, the winning probability of these RBs can be appropriately changed within this range with “1/8 to 1/12” as the upper limit.
By setting such a value, there is a possibility that RB generated during BB will be won or generated before the maximum number of games is played, regardless of the number of bets played. Get higher. For example, an RB generated during BB may be won or generated before a maximum number of games (16 games) are played when a small role game is played with the maximum number of bets (three bets). (The winning probability is 1/16), and if the number of stored medals is maximum (50), there is a high possibility that RB will occur before the stored medals run out (see FIG. 7). .

As a result, the state of the small role game before the occurrence of the RB can be digested to the maximum number of games as long as the game medium on hand is not lost, and by the RB winning / occurring after that, the RB You will be able to enjoy the benefits of mass payment.
In particular, a value obtained by dividing the maximum bet number of game media (three medals) by the maximum storage number (3 / 50≈1 / By storing and setting 16) as the winning probability of RB occurring in BB, the effect of the slot machine game according to the present embodiment can be provided to more players.

Also, by setting the RB occurrence probability based on the number of possible games (8 to 12 times) played during RB, the number of games in the small role game played before RB occurrence in BB The possibility that the number of games to be played is almost the same as the number of games played is increased, and the state of the small role game can be made as long as possible. In this way, the small role game that becomes the digest game state in the BB can be performed for a long time, so that a continuous effect can be performed via the display L or the speaker 9 in the small role game state that continues for a certain time. In addition, it is possible to continuously and continuously produce an expectation and the like for the RB generated after the small role game.
Furthermore, since the small role game state is played with continuity in this way, it becomes easy to change the content (music, video display, etc.) between the small role game and the JAC game (RB). It will be possible to perform direct performances.

In addition, as shown in FIG. 6B, the RB lottery probability in the BB can be different depending on the number of bets on the game medium. In this embodiment, the betting probability is three. Only, the RB lottery probability is set to a higher probability than other betting numbers. In this way, by setting the RB lottery probability for a specific bet number to a high probability, it becomes possible to win and start RB early without playing a small role game for a long time. The range of selection can be expanded, and it is possible to respond to a player who does not want to play a small role game for a long time, or a player who wants to finish the BB in as short a time as possible.
Of course, it is possible to set all the betting numbers to the same value.

In addition, the probability of RB lottery in this BB is the value of the probability of winning as long as at least one of the one to three bets satisfies the values of the above formulas 1 and 2 or formulas 1 to 3. Can be set arbitrarily. For example, a value as shown in FIG.
Specifically, as shown in FIG. 6C, the winning probability of the RB in the BB is “1 / 16.0” in the case of one bet and “1/6” in the case of two bets. .5 "and 3 bets are set to" 1 / 2.3 ". In this setting, the probability of winning the RB is set to a value satisfying the above-mentioned formulas 1 to 3 in the case of multiplying by 1 so that the 2-bet and 3-bet have a higher probability than that. It is set. Even in this way, it is possible to set the RB lottery probability to a high probability for a specific bet number (2 to 3 bets) and to win and start the RB early, and do not want to play a small role game for a long time It is also possible to deal with cases where it is desired to finish BB in as short a time as possible, and the range of selection of game characteristics can be expanded.

[Game operation]
Next, the gaming operation of the slot machine 1 according to the embodiment as described above will be described with reference to FIG.
FIG. 8 is a flowchart showing an outline of the gaming operation of the slot machine according to the present embodiment.
First, the game is started when the player inserts a medal into the medal slot 6 (step 801 in FIG. 8). The game started at this time is a normal game.
The medals to be inserted are usually assigned to one bet, two bets, three bets corresponding to the pay line on the display window 3, and when four or more medals are inserted, the fourth and subsequent medals are assigned. The medal is stored in the RAM 12 of the control unit 10 as a stored medal. Therefore, the stored medal is used for the second and subsequent games by the insertion button 7.

After the medal is inserted, when the start lever 4 is pressed (step 802), the control unit 10 selects an internal lottery table (see FIG. 6A) according to the number of coins inserted, and internal lottery is performed. (Step 803).
Along with this internal lottery, when a predetermined game time (eg, 4.1 seconds) has elapsed since the previous start lever was pressed, the three reels 21 start to rotate.
As a result of the internal lottery, when a predetermined big win (BB) is won, a predetermined internal hit notification is made via the internal hit notification 2a at the start of the game or after the game ends. Can be made.

Thereafter, when the player presses the stop buttons 5a to 5c (step 804), the reels 21a to 21c corresponding to the stop buttons 5a to 5c are controlled to stop (step 805).
At this time, the reels 21a to 21c are controlled by the control unit 10 and the drum unit 20, and the symbols on the reels correspond to the winning contents of the internal lottery within a certain range regardless of the timing of pressing the stop button 5. Stop control is performed so as to obtain a predetermined arrangement.

When all the reels 21a to 21c are stopped (step 805), processing corresponding to the stopped symbols is performed.
First, as a result of the internal lottery (step 803), if the jackpot has not been won (No in step 806), it is then determined whether or not it has hit a small role (step 807). If so (Yes in step 807), the game medium corresponding to the winning array is paid out (step 809) on condition that the reel stop symbols are in a predetermined winning array (step 808).
Thereafter, the continuation or end of the game is selected according to the player's judgment (step 810).

On the other hand, as a result of the internal lottery (step 803), when a big hit is made (Yes in step 806), the flag is established, and if the stop symbol of the reel 21 is in a predetermined winning arrangement, a win is won ( In step 811, the specific game state is entered and the specific game is played (step 812).
Therefore, when BB is won here, a BB game in which the RB lottery probability in the BB according to the present embodiment is set to an appropriate value is executed and controlled (see FIG. 7).
If the stop symbol is not in a predetermined winning arrangement after winning the jackpot (No in step 811), the specific game does not start, and if the player does not play a small role according to the stopped symbol arrangement (step) On the condition that the reel stop symbol is in a predetermined winning arrangement (step 808), a game medium corresponding to the winning arrangement is paid out (step 809).
Thereafter, the continuation or end of the game is selected according to the player's judgment (step 810).

As described above, according to the slot machine 1 according to the present embodiment, based on the maximum number of medals stored (50) and the number of bets (1 to 3), the number of RBs generated during the BB in the specific gaming state. The winning probability is obtained (1 ÷ 50 = 1/50 to 3 ÷ 50≈1 / 16), and this value is stored and set as the winning probability of the RB generated in the BB.
By setting such a value, there is a possibility that RB generated during BB will be won or generated before the maximum number of games is played, regardless of the number of bets played. More specifically, if the number of stored medals is maximum (50), there is a high possibility that an RB has occurred before the stored medals run out.
As a result, in the small role game (first game state) before RB occurs, the maximum number of games can be consumed as long as the medals on hand are not lost, and subsequent RB wins / Occurrence makes it possible to enjoy the benefits of mass payout by RB.

In addition, the value obtained by dividing the number of bets on medals by the maximum number of reserves is easy for the player to understand the contents and grounds, such as “If you bet 3, you will win RB within 16 games” or “ It is easy to understand sensuously and intuitively that if you play a bet 50 times, you can win RB.
Therefore, by knowing such a winning probability, the player can play the game with peace of mind, and the psychological merit given to the player is great. As a result, there is a sense of security and reliability that does not exist in the past. A high slot machine game can be provided.

Further, in the present embodiment, based on the number of possible games in the RB in the BB (for example, 8 to 12 games), the winning probability of the RB occurring in the BB that is the specific gaming state is obtained, and this value is slightly lower than that. The value that becomes the probability is stored and set as the winning probability of the RB generated in the BB.
In general, the RB in the BB is ended depending on whether a predetermined number of times (for example, 12 times) a game is performed during the RB, or whether a predetermined number of times (for example, 8 times) is won in a small role. Returns to the small role game, and thereafter, the small role game state and RB are repeated until a predetermined BB end condition is satisfied (for example, the total number of payouts in the BB reaches a predetermined number).
Therefore, in this embodiment, the reciprocal of the number of possible games (8 to 12 times) that will be played during RB is obtained, and this value is set as the RB occurrence probability in BB, so that RB in BB occurs. It is possible to maintain a balance between the number of games played in the same time (number of games in the small role game) and the number of games played during one JAC game (number of games in one RB).

As described above, in the slot machine 1 of the present embodiment, by setting the lower limit value and the upper limit value of the winning probability of the RB generated during the BB to the optimum values, the small role game in the BB (first gaming state) And the JAC game (second game state) can be balanced, and it is possible to maximize the game in the small role game while minimizing the decrease in medals.
As a result, it is possible to realize an attractive slot machine game that does not exist in the past, in which a game of the entire BB can be continued for a long time and a large amount of BB original payout can be obtained.

Further, in the slot machine 1 of the present embodiment that can make the small role game state in the BB digestion game state as long as possible in this way, the display L, the speaker 9 and the like are used during the small role game that continues for a certain period of time. A predetermined effect can be performed. For example, an effect that excites expectations for an RB (JAC game) generated after the small role game can be continuously and continuously performed during the small role game.
In addition, by performing such a small role game with continuity, it becomes easier to change the content (music, video display, etc.) between the small role game and the JAC game, and a sharp and exciting effect. Etc. can also be performed.
Furthermore, such control of the specific gaming state according to the present invention can be realized simply by setting a predetermined lottery probability in the internal lottery table, and can be immediately applied to existing slot machines. It can be widely offered as a slot machine with excellent versatility and expandability at low cost.

The preferred embodiment of the slot machine of the present invention has been described above. However, the slot machine according to the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. Needless to say.
For example, in the above-described embodiment, the maximum number of game media stored is 50 (for 50 medals) and the number of game media bets is 1 to 3 (for 1 to 3 medals). It can be changed as appropriate according to the game rules, the type of game medium used (medal or game ball), and the like.
Similarly, regarding the end condition of the second gaming state (RB in BB) in the specific gaming state, whether or not a predetermined number of times (12 times) the game is performed during the RB shown in the above-described embodiment, of which the predetermined number of times The value of the number of games in the condition of winning a small role (for example, 8 times) can be changed as appropriate.

  In the above-described embodiment, the winning contents determined and determined by the internal drawing of the slot machine include small roles, replays (replays), big bonuses (BB), regular bonuses (RB), and challenge times (CT). , Single Challenge Time (SCT), Single Bonus (SB), Loss, etc. are mentioned, but it is possible to realize a high probability state of the bonus game by changing the lottery probability of the gaming state according to the number of betting of the game medium As long as there is no special limitation.

  Furthermore, in the slot machine of the above-described embodiment, the case where the game medium to be used is a medal (coin) is shown, but the game medium that can be used in the slot machine according to the present invention is not limited to a medal, for example, a pachinko ball and Similar game balls can also be used as game media. A slot machine that can be played using such a game ball is also called a pachilot or the like, and can be applied as the slot machine of the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be used for a slot machine (cylinder-type game machine) in which a game is played using mainly medals (coins) and game balls (pachinko balls) as game media. It can be suitably used for a slot machine where BB (Big Bonus Game) is played.

It is a schematic front view showing a slot machine according to an embodiment of the present invention. It is a schematic perspective view which shows the internal structure of the slot machine which concerns on one Embodiment of this invention. FIG. 6 is a front view of a reel in a state where the reel is developed, showing an example of a symbol arrangement of the reel of the slot machine according to the embodiment of the present invention. FIG. 4 is a block diagram showing a control unit of the slot machine according to the embodiment of the present invention. It is explanatory drawing which shows the random number table used for the internal lottery of the slot machine which concerns on one Embodiment of this invention, (a) is a random number table, (b) is a random number table shown in (a) on a pie chart. It is a representation. It is explanatory drawing which shows the lottery probability table for internal lottery used with the slot machine which concerns on one Embodiment of this invention, (a) is a lottery probability table in a normal gaming state, (b) and (c) are specific games. It is a lottery probability table in a state (BB). It is a timing chart which shows the flow of the game in the specific game state (BB) controlled with the slot machine which concerns on one Embodiment of this invention. 4 is a flowchart showing a game process flow of the slot machine according to the embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slot machine 2 Front panel 3 Display window 4 Start lever 5 (5a, 5b, 5c) Stop button 6 Medal insertion slot 7 BET button 8 Game medal payout exit 9 Speaker 10 Control part 20 Drum unit 21 (21a, 21b, 21c) Reel 30 medal dispensing device

Claims (6)

A slot machine in which a plurality of reels rotate by a start operation, each reel that rotates by a stop operation stops, and the number of game media according to the arrangement of symbols on each stopped reel is paid out,
Control that performs internal lottery for each game based on a predetermined lottery probability and controls each game to a normal gaming state and a specific gaming state that is more advantageous to the player than this normal gaming state according to the result of the internal lottery With means,
The control means is
From the first gaming state, each game in the specific gaming state is won with a predetermined lottery probability according to the first gaming state and the result of the internal lottery performed for each game in the first gaming state. While controlling to the second gaming state advantageous to the player,
A slot machine that stores a value obtained by the following formula 1 as a lottery probability of the second gaming state.
Formula 1: Probability of lottery in the second gaming state ≒ number of game media bets ÷ maximum number of game media stored The control means is
The slot machine according to claim 1, wherein a value obtained by the following expression 2 is stored as a drawing probability of the second gaming state.
Formula 2: 1 / number of possible games in the second gaming state ≧ the probability of lottery in the second gaming state ≧ number of gaming media bets ÷ maximum number of gaming media storage The control means is
3. The slot machine according to claim 1, wherein a value calculated by the following expression 3 is stored as a lottery probability of the second gaming state.
Formula 3: Lottery probability in the second gaming state ≒ maximum number of game media bets ÷ maximum number of game media storage The control means includes
4. The slot machine according to claim 1, wherein a lottery probability that differs depending on a betting number of game media is stored as the lottery probability of the second gaming state.   The slot machine according to any one of claims 1 to 4, wherein the maximum number of game media stored is 50, and the number of game media bets is 1 to 3.   6. The specific gaming state is a big bonus state, the first gaming state is a normal state in the big bonus state, and the second gaming state is a regular bonus state in the big bonus. The slot machine as described in any one.

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