JP2006175250A - Slot machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slot machine by which a beginner can continue a game without reducing the number of owning medals and an expert can continue a game while increasing the number of owning medals. <P>SOLUTION: The slot machine includes a first probability table 62a, a second probability table 62b in which re-play prize winning probability has a value equal to or higher than non-re-play prize winning probability and a gradient value is higher than that in the first probability table 62a, a normal game mode in which a prize lottery means 61 draws lots using the first probability table 62a and a game is carried out without notifying a player of prize winning of a specific small prize, a specific game mode in which the prize lottery means 61 draws lots continuously using the second probability table 62b in at least a plurality of times on condition that a specific condition is not satisfied and a game is carried out notifying a player of winning a specific small prize, and a game mode determining means 64 to determine a game mode into a normal game mode or a specific game mode. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a slot machine for notifying the winning of a specific small role and performing a lottery of a role using a plurality of probability tables.

As a first conventional technique, there is known a slot machine that notifies a player of the possibility of winning a combination. This announcement effect, when winning a role in a lottery inside the slot machine, is different from the non-winning effect, such as turning on the backlight provided on the inner circumference side of the reel, outputting a specific sound, etc. is there.
The player can know that there is a possibility of winning a certain role by performing such a notice effect during the game.

  Also, in the slot machine, lottery is performed using a probability table that determines the winning probabilities of various roles. However, as a conventional second technique, a low probability table and a low probability table that slightly change the winning probabilities of small roles are used. One using a probability table is known. During normal games, the game is played with the above two probability tables switched to determine the current game status and to correct the game rate, so that the game rate is set to a certain slope value. It was controlled to approach.

  However, in the above-described conventional first technique, when the winning is effective only in the game, for example, in a small role, regardless of whether or not the small role won in that game wins, the next game The winning of the small role cannot be carried over. Therefore, when the announcement of the possibility of winning a small role is made after all reels are stopped, if the small role is not won in the game, the player only knows that the small role has been missed. . Therefore, there is a problem that it does not bring any profit to the player and is not interesting.

Furthermore, even if the announcement of the possibility of winning a small role is performed in advance, the player cannot know the types of small roles that can be won. Therefore, there is a problem that it is difficult for even an advanced player to reliably win a winning small role.
In order to solve this, the applicant has provided a game mode for notifying the type of the winning small combination, and under this gaming mode, a slot machine that can reliably win the selected small combination is proposed. (Japanese Patent Application No. 11-347712).

On the other hand, in the conventional second technique, the probability table is merely switched to correct the payout rate, and the payout rate during the game does not change greatly. In addition, the player cannot know which probability table is used for the lottery.
In order to solve this problem, the applicant of the present invention has proposed that a plurality of probability tables are provided, and when one probability table is selected, a game that can be maintained in the current state without reducing the number of medals owned is proposed. (Japanese Patent Application No. 11-320810).

  Therefore, by fusing the above two proposals, the present invention allows a beginner to continue the game without reducing the number of medals if a certain condition is satisfied. The present invention provides a slot machine capable of continuing the game while increasing it.

The present invention solves the above-described problems by the following means.
(Claim 1)
The invention of claim 1 is such that a plurality of combinations including a plurality of types of specific small combinations each have a predetermined winning probability, and the first probability table and the right to replay are given to the player. A probability table having a second probability table in which the winning probability of the given re-playing role has a value equal to or higher than the probability of not winning any role, and the slope value is set higher than the first probability table; A role lottery means for performing a lottery of a role, and a lottery of a role by the role lottery means using the first probability table, and a specified small role even when a specific small role is won by the role lottery means A normal game mode in which a game is played without notifying the player of the winning of the game, and a combination by the combination lottery means using the second probability table continuously in at least a plurality of games on condition that the specific condition is not satisfied When we do lottery In addition, based on the lottery result of the combination lottery means, the specific game mode in which the player is informed of the winning of the specific small role, and the game mode is determined as the normal game mode or the specific game mode. And a determining means.

In the first aspect of the present invention, the game mode is determined by the game mode determination means as the normal game mode or the specific game mode. In the specific game mode, first, when a specific small role is won, the winning is notified. Accordingly, the player can perform an operation so that the selected specific small combination wins, and the winning probability of the specific small combination increases. Secondly, the winning probability of the re-playing combination is equal to or higher than the probability of not winning any combination (non-winning probability). Therefore, since the re-gamer is frequently won and the number of non-winning games is reduced, the medal possession number does not decrease as in the game of the normal game mode.
On the other hand, in the game of the normal game mode, even if a specific small role is won, it is not notified and the winning probability of the re-game character is not increased.

  Therefore, a difference can be provided in the number of medals that can be acquired by the player between the normal game mode and the specific game mode. In addition, in games of a specific game mode, various settings such as a game in which the number of owned medals does not decrease compared to the game in the normal game mode, a game in which the number of owned medals is almost maintained, or a game in which the number of owned medals increases are set. it can. For example, even a beginner who is difficult to operate so that a selected small winning combination wins can play a game without reducing the number of medals possessed by frequent replaying winning combinations. In addition, for advanced players who can operate so that the selected small role will win, the number of medals owned will be assured that the re-playing role will win frequently while making sure that the selected specific small role is won. You can play games while increasing And while continuing this state, it can be expected to win a special role.

(Claim 2)
According to a second aspect of the present invention, in the slot machine according to the first aspect, the winning probabilities of the special role and the small role in the first probability table and the second probability table are set equal. .
In the invention of claim 2, since the winning probabilities for the special combination and the small combination are the same in the first probability table and the second probability table, only the winning probabilities for the re-playing combination are different. Thereby, in the game of the specific game mode in which the second probability table is used, the probability that the re-game player is won is greatly increased than usual, and the game content can be characterized.

(Claim 3)
According to a third aspect of the present invention, in the slot machine according to the first or second aspect, at least one reel pulls in the symbols constituting the selected small combination when the specific small combination is won by reel stop control. It is characterized in that symbols constituting plural kinds of specific small roles are arranged so that at least one of symbols constituting other specific small roles is arranged at a position where it cannot be performed.

  In the invention of claim 3, at least one of the symbols of the other specific small role is arranged in a position where at least one reel cannot draw the symbol of the selected specific small role when the specific small role is won. It is a symbol array. For this reason, even if it is a case where the reel is operated to stop the guessing of the selected specific small combination, the specific small combination cannot be reliably won. Therefore, in the game of the normal game mode, the winning probability of the specific small role won is lower than that in the game of the specific game mode.

(Claim 4)
According to a fourth aspect of the present invention, in the slot machine according to any one of the first to third aspects, the combination of symbols stopped on the active line is preliminarily determined while the special combination is won by the combination lottery means. Special game execution means for causing a special game to be executed on condition that the combination of symbols of the special role is determined is provided, and the game mode determination means sets the game mode after the end of the special game as the normal game mode. Alternatively, the specific game mode is determined.

  In the invention of claim 4, the game mode determining means determines whether the game mode after the end of the special game is the normal game mode or the specific game mode. And when the game mode after the end of the special game is determined to be the specific game mode, the number of medals won in the special game is almost maintained or increased without being reduced as in the normal game mode. While playing the game, you can expect to win the special role again.

(Claim 5)
According to a fifth aspect of the present invention, in the slot machine according to any one of the first to fourth aspects, the special combination is won by the combination lottery means, and the combination of symbols stopped on the active line is preliminarily determined. A special game executing means for performing a special game on the condition that the combination of symbols of the specified special role matches, and the winning of the specific small role is notified to the player based on the lottery result of the role lottery means. A notification game mode in which a game is played, a non-notification game mode in which a game is played without notifying the player of the winning of the specified small role even when the specified small role is won by the role lottery means, and during a special game Special game mode determination means for determining at least a part of the game mode as the notification game mode or the non-notification game mode.

In the invention of claim 5, the special game is executed when the special combination is won and the combination of symbols of the special combination is stopped on the active line. Then, the game mode of at least a part of the special game is determined to be a notification game mode or a non-notification game mode. When the game mode is determined as the notification game mode, the player is informed of the winning of the specified small role, so that the player can operate so that the selected specified small role wins. The chance of winning a small role increases. On the other hand, when the non-notification game mode is determined, even if the specific small role is won, the fact is not notified, so that the winning probability of the specific small role does not increase as in the game of the notification game mode.
Therefore, different modes can be provided as the game modes during the special game, and a difference can be provided in the number of medals acquired during the special game.

(Claim 6)
According to a sixth aspect of the present invention, in the slot machine according to the fourth aspect, based on a lottery result of the combination lottery means, a notification game mode for notifying a player of the winning of a specific small combination and playing a game, and the combination Even when the specific small combination is won by the lottery means, the non-notification game mode in which the game is played without notifying the player of the winning of the specific small role, and at least a part of the game mode in the special game are notified. A special game mode determination means for determining the game mode or the non-notification game mode, and the special game mode determination unit determines whether the combination lottery during the game of the specific game mode after the end of the special game. When the special combination is won by the means, at least a part of the game mode of the special game related to the selection of the special combination is determined as the notification game mode.

In the invention of claim 6, when the special game mode is determined after the special game is ended, if the special game is won during the game of the specific game mode, the special game will be won. The game mode of the special game is determined as the notification game mode.
Therefore, after the special game is completed, the player can obtain a special game mode benefit, and then win a special role during the specific game mode. Therefore, even after the special game is over, during the game of the specific game mode, it is possible to increase the expectation that the transition to the special game of the notification game mode can be made.

(Claim 7)
According to a seventh aspect of the present invention, in the slot machine according to any one of the first to sixth aspects, a start switch for starting a reel is operated in the game of the specific game mode or the notification game mode. The player is informed of the winning of the specific small role from when it is played until before all of the stop switches for stopping the reels are operated.

  In the invention of claim 7, when a specific small role is elected when a specific game mode or a notification game mode is selected, from when the start switch is operated to before all the stop switches are operated. In the meantime, the player is notified of the winning of the specific small role. Therefore, since the winning of the specific small role is notified before the game result of the game is finalized, even if the winning of the specific small role cannot be carried over to the next game, the player may Will be able to win the specified small role won in the game.

(Claim 8)
The invention according to claim 8 is the slot machine according to any one of claims 1 to 7, wherein in the game of the specific game mode or the notification game mode, the selected specific small combination can be determined. It is characterized by notifying a player in a different manner for each specific small role.

  In the invention of claim 8, when a specific small role is won during a game in the specific game mode or the notification game mode, the specific small role is notified in a different mode. Therefore, the player can know which specific small combination of a plurality of types of specific small combinations is won. Thereby, at the time of a game in the specific game mode or the notification game mode, it is possible to surely win the selected specific small role, and it is possible to eliminate the missing of the selected specific small role.

(Claim 1)
According to the first aspect of the present invention, a difference can be provided in the number of medals that a player can acquire according to the normal game mode and the specific game mode. In addition, in games of a specific game mode, various settings such as a game in which the number of owned medals does not decrease compared to the game in the normal game mode, a game in which the number of owned medals is almost maintained, or a game in which the number of owned medals increases are set. it can. For example, even a beginner who is difficult to operate so that a selected small winning combination wins can play a game without reducing the number of medals possessed by frequent replaying winning combinations. In addition, for advanced players who can operate so that the selected small role will win, the number of medals owned will be assured that the re-playing role will win frequently while making sure that the selected specific small role is won. You can play games while increasing And while continuing this state, it can be expected to win a special role.

(Claim 2)
According to the invention of claim 2, in the game of the specific game mode, the probability that the re-gamer wins is greatly increased than usual, and the game content can be characterized.
(Claim 3)
According to the invention of claim 3, even if the reel is operated by stopping the reels by guessing the winning special winning combination, it is not possible to win the specified winning role reliably. The winning probability of the specific small role can be made lower than that in the game of the specific game mode.

(Claim 4)
According to the invention of claim 4, when the game mode after the end of the special game is determined to be the specific game mode, the number of medals obtained in the special game is not reduced as in the game of the normal game mode. While maintaining the current situation or increasing the number of games, it is possible to expect a special role again.

(Claim 5)
According to the invention of claim 5, different modes can be provided as a game mode during the special game, and a difference can be provided in the number of medals acquired during the special game.

(Claim 6)
According to the invention of claim 6, after the special game is completed, the player obtains a special game mode benefit, and if the player wins a special role during the specific game mode, the player obtains a further notification game mode privilege. be able to. Therefore, even after the special game is over, during the game of the specific game mode, it is possible to increase the expectation that the transition to the special game of the notification game mode can be made.

(Claim 7)
According to the invention of claim 7, since the winning of the specific small role is notified before the game result of the game is confirmed, even if the winning of the specific small role cannot be carried over to the next game, When a specific small combination is won, the specific small combination won in the game can be won.

(Claim 8)
According to the invention of claim 8, the player can know which specific small combination of a plurality of types of specific small combinations is won. Thereby, at the time of a game in the specific game mode or the notification game mode, it is possible to surely win the selected specific small role, and it is possible to eliminate the missing of the selected specific small role.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an appearance of the slot machine 10 in the present embodiment.
In FIG. 1, a front panel 20 is provided on the front surface of the housing of the slot machine 10, and three transparent display windows 21 are provided in the front panel 20. On the other hand, three reels 31 corresponding to each display window 21 are arranged inside the housing and behind the display window 21.
Each reel 31 is connected to a (stepping) motor 32 (see FIG. 4), and the reel 31 is rotated by driving the motor 32.

The reel 31 is a ring-shaped body, and a reel tape printed with a pattern (such as a pattern constituting a role) shown in FIG. 2 is attached to the outer peripheral surface of the ring-shaped body.
On one reel 31, 21 symbols are arranged at equal intervals, and a different symbol arrangement is made for each reel 31. A part of the symbol arrangement of the reels 31 can be seen from the display window 21.

Five effective lines 22 are set in a portion including the display window 21 of the front panel 20. This effective line 22 is composed of three effective lines 22a, 22b and 22c in the upper, middle and lower stages in the horizontal direction, and two effective lines 22d and 22e in the diagonally downward and leftward directions. Yes.
In addition, on the three effective lines 22a, 22b, and 22c in the upper, middle, and lower stages in the horizontal direction, three symbols that are continuous above and below the reel 31 that can be seen from each display window 21 are located.

  A medal insertion slot 23 is provided on the lower right side of the front panel 20. When a player inserts a medal from here, the effective line 22 is activated according to the number of inserted medals. When the number of inserted sheets is one, one effective line 22b in the middle in the horizontal direction, when it is two, the three effective lines 22a, 22b and 22c in the horizontal direction are all three. 22a to 22e are activated.

  A start switch 41 and a stop switch 42 are provided on the front surface of the housing. The start switch 41 is a switch operated by the player when starting the rotation of the reel 31. Three stop switches 42 are provided independently for each reel 31 and are operated when the player stops the rotation of each reel 31.

  In the front panel 20, a character information display unit 24 is provided on the right side of the display window 21 in the figure. The character information display unit 24 is composed of, for example, a dot display or a liquid crystal display device. As will be described later, a specific small role is won in a lottery inside the slot machine 10 such as “red” or “blue”. Sometimes, it is for informing the player of the selected specific small role by character information.

  Further, a winning notification display section 25 is provided on the left side of the display window 21 in the figure. Similarly to the character information display unit 24 described above, the winning notification display unit 25 is for notifying the player when a specific small combination is won. In this embodiment, “7 (red)”, “7 (blue)”, and “BAR” are displayed on the board of the winning notification display unit 25 from the upper side in the drawing, respectively. A lamp (not shown) is independently provided on the back side (inside the casing). Each display portion is illuminated independently by lighting of the lamp.

FIG. 2 is a plan view showing 21 symbol arrays on the outer peripheral surface of each reel 31 in the present embodiment. In FIG. 2, unlike the actual design, the design is represented by characters. For example, “red 7” means a design of “7” colored red.
The symbols displayed on the reel 31 are composed of seven types of “red 7”, “blue 7”, “BAR”, “bell”, “cherry”, “watermelon”, and “plum”. A combination corresponding to the combination of these symbols is determined in advance.

FIG. 3 is a diagram showing a combination and a combination of symbols of the reel 31 corresponding to the combination in the present embodiment. The role is composed of BB (Big Bonus) and RB (Regular Bonus) which are special roles, three kinds of specific small roles A, B and C, general small roles 1 and 2, and a replaying role (replay). ing.
The BB is a role for shifting from a normal game to a BB game (a game advantageous to the player) which is one of special games. When transitioning to the BB game, first, transition to the first game is made. In the first game, a lottery for transferring to a small combination (including both a specific small combination and a general small combination) and a second game is performed. Then, when the winning combination is won during the first game, the game shifts from the first game of the special game to the second game (bonus game).

  In the second game, a game in which a predetermined combination wins with a high probability is performed for a specified number of winnings or a specified number of games. In this second game, when the prescribed number of winnings or the prescribed number of games is reached, the game returns to the first game again. Then, the first game and the second game are repeated until the number of games of the first game reaches the specified number of times or the number of times of transition from the first game to the second game reaches the specified number of times. It is. When the number of times of transition from the first game to the second game is the specified number of times, the BB game is ended by the end of the second game.

  The RB is a role for shifting from a normal game to an RB game (a game advantageous to the player) which is one of special games. When the RB game is entered, the second game (bonus game) in the BB game is played as a set, that is, a game in which a predetermined role is won with a high probability is performed for the specified number of winnings or the specified number of games.

A small combination (a specific small combination and a general small combination) is a combination in which a predetermined number of medals shown in FIG. 3 are paid out.
In addition, the re-game is a role that allows a re-game to be performed while maintaining the number of medals inserted in the game.

A combination of symbols on the reel 31 corresponding to the various combinations described above is determined in advance as shown in FIG. When all the reels 31 are stopped, when the combination of symbols stopped on the active line 22 matches a predetermined combination of symbols of the combination, a winning combination of the combination is awarded. For example, when all the reels 31 are stopped, if the combination of symbols on the active line 22 is “red 7”-“red 7”-“red 7”, a BB win is won and 15 medals are paid out. At the same time, it shifts to the BB game. The same applies when the combination of three “Blue 7” or “BAR” symbols is aligned on the active line 22 and stopped.
In addition, when the symbol combination of “Red 7”-“Red 7”-“BAR” or “Blue 7”-“Blue 7”-“BAR” stops on the active line 22, it becomes an RB prize, While 15 medals are paid out, the RB game is entered.

Furthermore, when the symbol combination of “Red 7”, “Blue 7” or “BAR”-“Bell”-“Bell” stops on the active line 22, a specific small role is won and 15 medals are paid out. .
Furthermore, when the symbol combination “watermelon”-“watermelon”-“watermelon” stops on the effective line 22 or when “cherry” of the left reel 31 stops on the effective line 22, The winning combination will be 8 or 2 medals, respectively.
Further, when the symbol combination of “Plum”-“Plum”-“Plum” stops on the active line 22, a re-game player wins and a re-game can be performed while maintaining the number of medals inserted in the previous game. .

Next, control of the slot machine 10 will be described. FIG. 4 is a block diagram showing an outline of control of the slot machine 10 of the present embodiment.
(Game control means)
The game control means 60 is a part that controls the entire slot machine 10 such as a game progress control of the slot machine 10, and is composed of, for example, a control board having a CPU, a ROM, a RAM, and the like. The above-mentioned start switch 41 and stop switch 42 are electrically connected to the input side of the game control means 60, and the motor 32 connected to each reel 31 and the above-mentioned character information are connected to the output side thereof. The display unit 24, the winning notification display unit 25, and the like are electrically connected.

  When the start switch 41 is turned on by the player, the game control means 60 detects an ON signal of the start switch 41, so that the motor 32 is driven to start each reel 31, and a lottery of a combination is performed. .

Next, when the stop switch 42 is turned on by the player, the game control means 60 detects a signal indicating that the stop switch 42 is turned on. The design of the reel 31 to be stopped is determined, and the motor 32 is controlled to stop so that each predetermined reel design stops on the effective line 22.
Then, the game control means 60 determines whether or not the symbol combination of the reel 31 stopped on the active line 22 matches a predetermined combination of symbols of some combination, and when they match (when winning) Then, processing such as paying out medals is performed according to the winning combination.

(Role lottery means)
The role lottery means 61 performs lottery for a role (special role (BB and RB), specific small role, general small role, or re-game role). The role lottery means 61 is based on, for example, a random number generator for hard lottery (hard random number, etc.), a random number extractor for extracting a random number generated by the random number generator, and a random value extracted by the random number extractor. Determination means for determining whether or not a winning combination has been won and a winning combination.

  The random number generation means of the role lottery means 61 generates random numbers in a predetermined area (for example, 0 to 65535 in decimal notation). The random number extraction means extracts the random number generated by the random number generation means at a predetermined time, for example, when the start switch 41 is turned on by the player. The judging means collates the random number value extracted by the random number extracting means with a predetermined probability table 62, which will be described later, to determine the combination corresponding to the area to which the random number value belongs. For example, when the extracted random number value belongs to the BB winning area, it is determined that the BB is winning, and when it belongs to the non-winning area, it is determined not to win.

(Probability table)
The probability table 62 defines the winning probability of each combination. In the present embodiment, the probability table 62 includes a first probability table 62a, a second probability table 62b, and the like.
FIG. 5 is a diagram illustrating winning combinations of the first probability table 62a and the second probability table 62b according to the present embodiment.

  In FIG. 5, the first probability table 62a is not different from the probability table conventionally used. As described above, the combination includes BB, RB, specific small combinations A to C, small combinations 1 and 2, and a re-playing combination, each of which has a winning probability. In addition, although the winning probability of a combination is usually determined for each inserted number of medals (1 to 3), in this embodiment, it is omitted for convenience of explanation.

  In the first probability table 62a and the second probability table 62b, the winning probabilities of the special combination and the various small combinations are set to be equal, and only the winning probabilities of the re-playing combination are different. The winning probability of the re-gamer is set to 1 / 7.3 (about 13.7%) in the first probability table 62a, whereas it is 1 / 1.6 (62 in the second probability table 62b. .5%), which is significantly higher than the winning probability of the re-gamer in the first probability table 62a.

Here, the probability obtained by subtracting the sum of the winning probabilities of all the combinations from the probability 1/1 (100%) is a non-winning probability of not winning any combination. In the first probability table 62a, the non-winning probability is about 67%.
On the other hand, the non-winning probability in the second probability table 62b is about 18.2%. Thereby, in the first probability table 62a, the probability of non-winning has the highest value, but in the second probability table 62b, the winning probability of the re-gamer is set higher than the non-winning probability.

  Although not shown, the probability table 62 is provided with a special game probability table in addition to the first probability table 62a and the second probability table 62b. For example, the probability table for the BB game is provided with a first game probability table and a second game probability table. The first game probability table is determined so that each of the various small combinations and transition combinations has a predetermined winning probability. Further, the second game probability table is determined so that the predetermined combination has a high winning probability.

  Each probability table 62 has a lottery area in a predetermined range, and the lottery area is divided into a winning area and a non-winning area for each combination. For example, in the first probability table 62a and the second probability table 62b, the winning area of each combination in the lottery area is set to a predetermined ratio so as to have the winning probability shown in FIG.

Next, the slope value of the probability table 62 will be described.
FIG. 6 is a diagram illustrating the slope values of the first probability table 62a and the second probability table 62b. This inclination value is a value when the number of inserted medals is 3, and includes a winning probability of the re-gamer.
As shown in FIG. 6, when the number of games is taken on the horizontal axis and the difference between the number of paid-out medals and the number of inserted medals is taken on the vertical axis (difference number = paid-out number-inserted number), As the number of games increases, the number of differences gradually decreases. The inclination value indicates the decrease rate of the difference number.
The slope value of the second probability table 62b is set higher than the slope value of the first probability table 62a.

  The first probability table 62a has a general slope value that has been widely used, but the second probability table 62b has a slope value close to 100%. That is, when the second probability table 62b is used, BB, RB, and various small roles are won with a predetermined probability, and re-playing roles are frequently won (with a probability of 62.5%). Even with the continuation, the number of owned medals does not decrease as in the case where the first probability table 62a is used.

Returning to FIG.
(Special game execution means)
The special game execution means 63, when the special combination (BB or RB) is won by the combination lottery means 61 and the combination of the special combination symbols stops on the active line 22 and wins, the special game is changed from the normal game. The game is shifted to (BB game or RB game) and a special game is performed.
During the special game, the special game execution means 63 controls the progress of the game during the special game. For example, a means for counting the number of wins for a predetermined role in the second game during the BB game, the number of games for the first game and the second game, and the number of transitions from the first game to the second game during the BB game are counted. Various means, such as means for determining whether or not a special game end condition is satisfied, and means for controlling to end the special game when it is determined that the special game end condition is satisfied.

(Game mode determining means)
The game mode determination means 64 determines the game mode as a normal game mode or a specific game mode.
Here, the normal game mode includes, firstly, a game mode in which the lottery means 61 performs lottery using the first probability table 62a. That is, it is a game mode in which medals decrease at a constant rate.
On the other hand, the specific game mode is that a combination of lotteries by the combination lottery means 61 is performed by using the second probability table 62b continuously in at least a plurality of games on condition that the specific condition is not satisfied. The game mode to be performed is included. That is, it is a game mode in which re-game players are frequently won.

Further, the normal game mode includes a non-notification game mode in which the game is performed without notifying the player of the winning of the specific small role even when the specific small role is won by the winning lottery means 61. In this game mode, since the player cannot know the winning of the specific small role, the selected specific small role does not always win.
On the other hand, the specific game mode secondly includes a notification game mode in which a game is performed by notifying the player of the winning of the specific small role based on the lottery result of the combination lottery means 61. That is, in the notification game mode, when a specific small combination is won, the fact is notified, and the player can operate the stop switch 42 so that the selected specific small combination wins.

  FIG. 7 is a diagram for explaining an inclination value in each game in the normal game mode and the specific game mode. Note that this inclination value is a value when the number of inserted medals is 3, as in FIG. 6, and is a value including the winning probability of the re-gamer. In the game of the specific game mode, when the winning rate of the selected small role is 100%, that is, when the specific small role is won, the player operates the stop switch 42 to win the selected specific small role. This is a case where the winning is surely won.

As shown in FIG. 7, when the number of games is taken on the horizontal axis and the difference number is taken on the vertical axis, in the game of the normal game mode, the number of games is shown in the same manner as when the first probability table 62 a in FIG. 6 is used. As the number increases, the difference number gradually decreases.
On the other hand, in the specific game mode, by using the second probability table 62b, the slope value of the second probability table 62b in FIG. 6 is at least used, and further, the selected small role can be reliably won. For example, as the number of games increases, the number of differences gradually increases.

  As a result, in the specific game mode, even the beginner who cannot win the selected specific small role at all, as shown by the slope value of the second probability table 62b in FIG. You can play no games. Furthermore, as shown by the slope value of the specific game mode in FIG. 7, the advanced player who can reliably win the selected specific small combination can play the game while increasing the number of medals owned.

  In this embodiment, the game mode determination means 64 determines the game mode after the end of the BB game, which is one of the special games, as a normal game mode or a specific game mode. The game mode determination means 64 uses the same random number generation means as described in the role lottery means 61. Then, when the BB is won, the random number generated by the random number generation unit of the game mode determination unit 64 is extracted, and based on the random number value, the normal game mode or the specific game mode is determined. In the present embodiment, the game mode or the specific game mode is determined with a probability of 1/2.

Therefore, in the random number generation means of the game mode determination means 64, for example, if a random number of 0 to 65535 is generated in decimal notation, when the extracted random number value is in the range of 0 to 32767, the normal game mode is determined. When the extracted random number value is in the range of 32768 to 65535, the specific game mode is determined.
This determination may be made at any time after the BB is won by the winning lottery means 61 and until the end of the BB game.

  In addition to the lottery by the winning lottery means 61, it is possible to determine the game mode by the game mode determination unit 64. For example, in the probability table 62 of the role lottery means 61, the BB winning area is divided into two areas, one area is determined as the normal game mode, and the other is determined as the specific game mode. .

(Special game mode determining means)
The game mode determining means 65 during the special game determines at least a part of the game mode during the special game, in particular, in the present embodiment, the game mode of the first game of the BB game as the notification game mode or the non-notification game mode. It is.
Furthermore, in this embodiment, the special game mode determining means 65 wins the BB by the role lottery means 61 during the game of the specific game mode when the game is shifted to the specific game mode after the end of the BB game. At that time, the game mode of the first game of the BB game related to the winning of the BB is determined as the notification game mode. On the other hand, when a BB is won by the winning lottery means 61 during a game in the normal game mode, the game mode of the first game of the BB game related to the winning of the BB is determined as a non-notification game mode.

(Counting means for counting the number of games during a specific game mode)
The number-of-games counting means 66 in the specific game mode counts the number of games in the specific game mode when the game shifts to the game of the specific game mode after the end of the BB game, and a counter or the like is used. The reason why the number of games in the game in the specific game mode is counted in this way is because an upper limit is set for the number of games in the specific game mode. In the present embodiment, when the number of games in the specific game mode reaches 100 times, the game in the specific game mode is ended and the game is returned to the normal game mode.

(Specific small role winning notification control means)
The specific small role winning notification control means 67 controls to notify the player of the selected specific small role when the specific small role is won during the game of the specific game mode or the notification game mode. is there.
Here, in the present embodiment, the specific small role winning notification control means 67 notifies after the start switch 41 is turned on until all stop switches 42 are turned on, for example, immediately after the start switch 41 is turned on. Control to do. This is due to the following reason.

  When a specific small role is won, the winning is effective only in the game, and it is set so that the winning cannot be carried over to the next game. In other words, if the specific small role is not won in a game won by the specific small role, the rights generated by the winning will also disappear. Therefore, when a specific small role is won, the player can operate the stop switch 42 so that the specific small role is won, that is, the symbols constituting the specific small role are stopped on the active line 22. Therefore, notification is made until at least all the stop switches 42 are turned on.

The notification of the selected small combination is performed by both the character information display unit 24 and the winning notification display unit 25 shown in FIG.
Here, as shown in FIG. 3, the combinations of the symbols of the three types of specific small roles A to C are “red 7”, “blue 7” or “BAR”-“bell”-“bell”. Only the symbol of the left reel 31 is different, and the symbol of the middle reel 31 and the right reel 31 is “bell” in any specific small combination. Therefore, if only the symbol of the left reel 31 is notified to the player, the player can know which specific small role has been won.

For this reason, for example, when a specific small role A composed of a combination of “red 7”-“bell”-“bell” is won, a character “red” is displayed on the character information display unit 24 and a winning notification is made. The lamp is turned on so that the “7 (red)” symbol portion of the display unit 25 is illuminated.
Similarly, when a specific small role B composed of a combination of “blue 7”-“bell”-“bell” is won, a character “blue” is displayed on the character information display unit 24 and a winning notification display is made. The lamp is turned on so that the symbol part “7 (blue)” of the portion 25 is illuminated.

Similarly, when a specific small role C composed of a combination of “BAR”-“bell”-“bell” is won, the character “BAR” is displayed on the character information display section 24 and a winning notification display is made. The lamp is turned on so that the symbol part “BAR” of the unit 25 is illuminated.
In this way, if the player is notified in a different manner for each selected small combination, the player can determine the type of the selected specific small combination.

  Here, as shown in FIG. 5, the winning probabilities of the specific small roles A to C are respectively 1 / 19.5. Therefore, the probability that any specific small role is won is 3 / 19.5. Then, if the type of the selected special combination is notified at the time of winning the specific small combination, the player can display the symbols (“red 7”, “blue” which constitute the specific small combination selected when the left reel 31 is stopped. 7 ”or“ BAR ”) can be operated so that the stop switch 42 stops on the active line 22. Thereby, in the game of the specific game mode after the end of the BB game or the game of the notification game mode during the BB game, it becomes possible to win the specific small role with a probability of 3 / 19.5.

  On the other hand, when the winning of the specific small role is not notified, the player knows that any specific small role will be won with a probability of 3 / 19.5, but the specific small role in the game It is not possible to know whether or not you have won and which specific small role has been won.

As shown in FIG. 2, “Red 7”, “Blue 7” and “BAR” which are symbols constituting the specific small part of the left reel 31 are arranged in No. 2, No. 9 and No. 16, respectively. . That is, each of these symbols is arranged at seven symbol intervals.
The reason for this arrangement is as follows.
In the slot machine 10, stop control of the reel 31 is performed. This is because, when the winning combination is won in the slot machine 10, the reel 31 is stopped if the symbol related to the winning combination does not stop on the active line 22 at the position where the stop switch 42 is detected. By occasionally controlling the movement, the winning pattern of the winning combination is increased by actively stopping the symbol related to the combination on the active line 22. The stop control of the reel 31 is normally set to 190 ms or less (within 5 symbols counting from the position where the stop switch 42 is detected). Therefore, if the stop switch 42 is turned on when any of the symbols up to 5 symbols before the symbol related to the winning combination is positioned on the effective line 22, the symbol related to the winning combination is displayed on the effective line 22. Will stop.

For example, in the case where a game is played with three medals inserted, when the specific small role A, which is a combination of “red 7”-“bell”-“bell”, is won, 6 of the left reel 31 From the moment the symbols No. 7, No. 8 and No. 8 are located on the effective lines 22a, 22b and 22c, the No. 21, No. 1 and No. 2 symbols are located on the effective lines 22a, 22b and 22c, respectively. If the stop switch 42 is turned on until the moment, the second “red 7” is controlled to stop on one of the effective lines 22a, 22b or 22c.
On the other hand, when the stop switch 42 is turned on at any other position, the second “red 7” does not stop on the active line 22 even if the specific small role A is won. There will be no winnings.
As described above, in the specific game mode or the notification game mode in which the winning of the specific small role is notified, if the selected specific small role is notified, the player can activate the symbol related to the selected specific small role with high probability. It can be stopped on line 22.

  However, in the normal game mode or the non-notification game mode in which the winning of the specific small role is not notified, the player can win the specific small role only in 1/3 of the game in the specific game mode or the notification game mode. For example, if the player predicts that the specific small role B related to “Blue 7” is elected, the stop switch 42 of the left reel 31 is stopped so that the symbol “Blue 7” stops on the active line 22. In the case of the stop operation, if the specific small role B is actually elected, the symbol “blue 7” related to the specific small role B stops on any of the effective lines 22a, 22b or 22c. At this time, from the moment when the 13th, 14th and 15th symbols of the left reel 31 on the left reel 31 are positioned on the effective lines 22a, 22b and 22c, respectively, the 7th, 8th and 9th symbols. The condition is that the stop switch 42 is turned on until the moment when each symbol is located on each of the effective lines 22a, 22b and 22c.

  However, when the player's prediction is wrong and the specific small role A or C whose symbol of the left reel 31 is “red 7” or “BAR” is elected, the position where the player turns on the stop switch 42 The second “red 7” of the left reel 31 and the “BAR” of the 16th cannot stop on the active line 22. That is, in order for the second “red 7” to stop on any of the active lines 22, the stop switch 42 must be turned on in the above-described range. Similarly, in order for the “BAR” of No. 16 to stop on any of the effective lines 22, from the moment when the symbols of No. 20, No. 21 and No. 1 are positioned on the effective lines 22a, 22b and 22c, respectively. This is because the stop switch 42 must be turned on until the moment when the symbols No. 14, No. 15, and No. 16 are located on the effective lines 22a, 22b and 22c, respectively.

  When a game is played with one medal inserted, the effective line 22 to be activated is only the effective line 22b. Therefore, in the above example, when the specific small role A, which is a combination of the symbols “Red 7”-“Bell”-“Bell”, is won, the symbols from No. 2 to No. 6 on the left reel 31 are effective lines. If the stop switch 42 is turned on at the moment of being positioned on 22b, the second “red 7” is controlled to stop on the effective line 22b. When the stop switch 42 is turned on at any other position, even if the specified small role A is elected, the second “red 7” on the active line 22b does not stop, Absent.

  As shown in FIG. 2, in the middle reel 31 and the right reel 31, all the symbols of “bell” are arranged at intervals within 5 symbols. Therefore, when one of the specific small roles is won, the symbol “bell” is controlled to stop on the active line 22 for the middle reel 31 and the right reel 31 regardless of the position at which the stop switch 42 is turned on. .

For example, when 100 games are played in the specific game mode after the BB game is over, it is assumed that the game is played by inserting three medals in one game. At this time, the net increase in the number of medals at the time of winning a specific small role is 12. Therefore, during the game of the specific game mode, the number of medals obtained by the specific small role is
12 (net increase number) × 100 (number of games) × 3 / 19.5 (probability of winning for any specific small role) × 1/1 (winning rate) = about 185.
In contrast, in the normal gaming mode,
12 (net increase) x 100 (number of games) x 3 / 19.5 (probability of winning for any specific small role) x 1/3 (winning rate) = approx. 62 cards. There is a difference.

  As described above, a large difference can be provided in the number of acquired medals between the specific game mode and the normal game mode. Moreover, the width of game content can be expanded by providing such different game modes.

Furthermore, as described above, in this embodiment, when a BB is won during a game of a specific game mode, the game mode of the first game of the BB game related to the BB win is determined as the notification game mode.
During the first game of the BB game, a lottery including a specific small role is drawn. And even if the specific small role is won in this lottery, if it is a non-notification game mode, the player is not notified of the winning of the specific small role, and the first game of the conventional BB game There is no difference.

However, as described above, when the notification game mode is determined, in the first game of the BB game, when a specific small role is won, which of the three types of specific small roles is won? Informed to the player.
That is, even during the first game of the BB game, the prize rate of the specific small role is increased by a factor of three in the game between the notification game mode and the non-notification game mode.

For example, the upper limit value of the number of games in the first game of the BB game is 30 times. Then, it is assumed that three medals are inserted in one game and the first game is played up to the upper limit of 30 times. In the first game probability table of the BB game, the winning probability of each specific small role is 1/6. At this time, when the notification game mode is determined in the first game of the BB game, the number of medals obtained by the specific small role is
12 (net increase number) × 30 (number of games) × 3/6 (the winning probability of any specific small role) × 1/1 (winning rate) = 180.
In contrast, in the non-notification game mode,
12 (net increase) x 30 (number of games) x 3/6 (probability of winning for any specific small role) x 1/3 (winning rate) = 60. By the first game of the BB game, both are 120 There will be a difference in the number of medals won.

Next, the game flow of the slot machine 10 will be described based on a flowchart.
FIG. 8 is a flowchart showing the flow of the game from the game in the normal game mode to the end of the BB game.
First, the player inserts a medal from the medal insertion slot 23, activates the valid line 22, turns on the start switch 41, and starts each reel 31. In step S1, the game control means 60 continues to detect whether or not the start switch 41 is turned on. When the start switch 41 is detected, the game control means 60 proceeds to the next step S2, and draws a winning combination by the winning lottery means 61. Do. The probability table 62 used for the lottery of the combination is a first probability table 62a.

  In the next step S3, it is determined whether or not the BB as a special role has been won. If the BB is won, in step S4, first, the game after the end of the BB game is normally played by the game mode determining means 64. The game mode or the specific game mode is determined. Here, the game mode determination means 64 determines the normal game mode or the specific game mode by lottery using a random number generation unit or the like as described above.

Second, the game mode determining means 65 during the special game determines whether the game mode of the first game of the BB game is a notification game mode or a non-notification game mode. Here, the game mode determining means 65 during the special game determines whether the game mode of the game won by the BB is the normal game mode or the specific game mode. Then, when it is determined that BB is won in the game of the normal game mode, the game mode of the first game of the BB game is determined as the non-notification game mode. On the other hand, when it is determined that the BB is won in the game of the specific game mode, the game mode of the first game of the BB game is determined as the notification game mode. When the above game mode is determined, the process proceeds to the next step S5.
On the other hand, if BB is not won in step S3, the process proceeds to step S5 without performing the process in step S4.

  When the player stops the rotation of the reels 31 by pressing the stop switch 42, in step S5, whether or not all the reels 31 are stopped is detected by an output from the stop switch 42, a drive signal from the motor 32, or the like. Subsequently, when it is detected that all the reels 31 are stopped, the process proceeds to step S6. In step S6, it is determined whether or not the combination of symbols of BB has stopped on the effective line 22. When the combination of symbols of BB stops on the active line 22, BB is won and the process proceeds to step S7.

  On the other hand, when BB does not win, the process proceeds to “A” in the figure. After proceeding to “A” in the figure, when the winning combination is not won, the process returns to step S1 without any winning process or the like. Further, when any small role is won, after performing predetermined processing such as paying out medals, the process returns to step S1. Furthermore, when the re-game player wins, the number of medals inserted in the previous game is automatically inserted, and the process returns to step S1. Note that, when an RB wins, the game shifts to the RB game, but the description is omitted here.

  In step S7, it is determined whether or not the game mode of the first game of the BB game is a notification game mode. And when it determines with it being a notification game aspect, it progresses to step S8 and the special game execution means 63 performs BB game with notification. On the other hand, when it is determined in step S7 that it is not a notification game mode (a non-notification game mode), the process proceeds to step S9, and the special game execution means 63 executes a BB game without notification.

FIG. 9 is a flowchart showing a game flow in the BB game with notification. That is, when the process proceeds to step S8 in FIG. 8, the process proceeds to step S21 and subsequent steps in FIG.
When the BB game with notification is executed, the special game executing means 63 continues to detect whether or not the start switch 41 is turned on in step S21. When the player inserts a medal from the medal insertion slot 23, activates the effective line 22, and turns on the start switch 41, the game control means 60 detects the on of the start switch 41 and starts each reel 31. . Then, the process proceeds to the next step S22, where a combination of lotteries is performed by the combination lottery means 61.

  Note that the probability table 62 used here is different from the first probability table 62a of the role lottery (step S2 in FIG. 8) in the game of the normal game mode. In other words, there are no special winnings such as BB and RB, and re-playing winnings, but a shift to shift to 3 types of specified small winnings A to C, general small winnings 1 and 2, and the second game Each combination has a predetermined winning probability.

  If the lottery is drawn in step S22, in the next step S23, the special game executing means 63 determines whether or not any specific small role is won, and if it is won, the process proceeds to step S24. In step S24, the specific small combination winning notification control unit 67 controls the display of the character information display unit 24 and the winning notification display unit 25 to notify the player of the selected specific small combination. Specifically, for example, when the specific small combination A is won, the character information display unit 24 displays “red” which is the symbol color of the left reel 31 among the combinations of the symbols of the specific small combination A. Further, the lamp is turned on so that the symbol portion “7 (red)” of the winning notification display unit 25 is illuminated. Then, the process proceeds to step S25.

On the other hand, when it is determined in step S23 that no specific small combination has been won, the process proceeds to step S25 without performing the process of step S24.
In the next step S25, it is continuously detected whether or not all the reels 31 are stopped by the output from the stop switch 42 or the drive signal from the motor 32, and when it is detected that all the reels 31 are stopped, step S26 is performed. Then, the special game executing means 63 determines the presence / absence of a winning from the combination of symbols stopped on the active line 22.

  When there is a winning, processing such as payout according to the winning combination is performed. Specifically, when a specific small combination or another small combination wins, a payout process for the number of medals corresponding to the combination is performed. In addition, the combination of symbols of the transitional role for transitioning to the second game (in this embodiment, the same combination of symbols of “Plum”-“Plum”-“Plum” as the combination of symbols of the re-gamer) is an effective line. When the game stops on 22, the special game execution means 63 shifts from the first game to the second game.

In the next step S27, the special game executing means 63 determines whether or not the BB game end condition is satisfied. For example, when the number of general games in the BB game reaches a specified number of times, or when the second game ends when the number of transitions from the first game to the second game reaches the specified number of times, the BB game end condition It is determined that the condition is satisfied.
If it is determined that the BB game end condition is not satisfied, the process returns to step S21 to continue the BB game. If it is determined that the BB game end condition is satisfied, the process proceeds to step S10 in FIG.

  Note that the BB game without notification in step S9 in FIG. 8 does not perform the processing of step S23 and step S24 (determination of winning of a specific small role and notification at the time of winning) in the flowchart of FIG.

  In the above BB game, in this embodiment, when a specific small role is won in the case of being determined as a notification game mode, the player is notified of which specific small role has been won. Therefore, the player can see the notification content and stop the stop switch 42 so that the combination of the symbols of the specific small role is stopped on the active line 22 to surely win the selected specific small role. It becomes possible. On the other hand, when the non-notification game mode is determined, even if the specific small role is won, the player has won whether or not the specific small role is won in the game. If so, you can not know which specific small role is elected. Therefore, in this case, even if the selected small winning combination is estimated and the stop switch 42 is turned on, the winning of the specific small winning combination is 1/3 as compared with the case where the notification is made.

  If it is determined that the BB game is ended in step S10 of FIG. 8, the process proceeds to step S11, and it is determined whether or not the game mode after the end of the BB game is the specific game mode. That is, it is determined whether the game mode determined in step S4 is a specific game mode or a normal game mode.

Here, when it is determined that the game mode is not the specific game mode (the normal game mode), the process returns to step S1 in FIG. Further, the first probability table 62a is used as the probability table in this game.
When a BB is won in step S3 during the game in the normal game mode, the special game mode determining means 65 determines the game mode of the first game in the BB game as a non-notification game mode in step S4. To decide.

On the other hand, when it is determined in step S11 that the game mode is the specific game mode, the process proceeds to step S41 and subsequent steps in FIG.
First, when a game in a specific game mode is started, the number-of-games counting unit 66 in the specific game mode initializes the number of games in the specific game mode (G = 0) in step S41.

  In the next step S42, the game control means 60 sets the second probability table 62b as a probability table used by the role lottery means 61. Next, it progresses to step S43 and the game control means 60 continues detecting whether the start switch 41 was turned on. When ON is detected, the process proceeds to the next step S44, and a lottery of the combination by the combination lottery means 61 is performed.

  In the next step S45, the game control means 60 determines whether or not BB has been won, and if it has won, the process proceeds to step S4 in FIG. In other words, after winning the BB, the game in the specific game mode is terminated, and the game shifts to a game mode specific to the game after the BB is won.

  Here, when the game of the specific game mode is finished, it may be notified to the player. If this notification is given, the player can know that BB has been won. Moreover, you may make it not alert | report that BB was elected. In this case, for example, when the specific small role is won even though the winning of the specific small role is not notified, the player can know that the BB has been won. This is because when the game shifts to the game of the specific game mode after the BB game ends, the game of the specific game mode is continued up to 100 times. This is because the fact that the winning of the specific small role has not been notified in spite of the fact that the specified number of times has not been reached means that the specific game mode has ended, that is, that BB has been won.

  When the process proceeds from step S45 in FIG. 10 to step S4 in FIG. 8, since the BB was won during the game of the specific game mode, the game mode determination means 65 during the special game plays the first game of the BB game. The game mode is determined as the notification game mode.

If it is determined in step S45 that the BB has not been won, the process proceeds to the next step S46, where it is determined whether or not any specific small role has been won, and if it is determined that it has been won, the process proceeds to step S47. move on. In step S47, the specific small combination winning notification control unit 67 notifies the player of the selected specific small combination using the character information display unit 24 and the winning notification display unit 25, and then proceeds to step S48.
On the other hand, when it is determined in step S46 that the specific small combination is not won, the process proceeds to step S48 without performing the process of step S47.

  In step S48, whether or not all the reels 31 are stopped is continuously detected by an output from the stop switch 42 or a drive signal from the motor 32, and when it is detected that all the reels 31 are stopped, step S49 is performed. Proceed to In step S49, the game control means 60 determines the presence / absence of a winning combination from the combination of symbols stopped on the active line 22. When there is a winning, processing such as payout according to the winning combination is performed.

  Specifically, when a specific small combination or a general small combination wins, a payout process for the number of medals corresponding to the combination is performed. Further, when the re-game player wins, control is performed so that the re-game can be performed while maintaining the number of medals inserted in the previous game. In the game of the flowchart of FIG. 10, since the second probability table 62b is used, the re-game player is elected and won with a probability of 1 / 1.6.

Next, proceeding to step S50, the game number counting means 66 in the specific game mode adds 1 to the game number G of the specific game mode. Then, in the next step S51, the game control means 60 determines whether or not the number of games G in the specific game mode has reached the specified number (whether it has reached 100 in the example of FIG. 10). When it is determined that the specified number of times has been reached, the process proceeds to step S52 to control to end the game in the specific game mode. That is, the first probability table 62a is set instead of the second probability table 62b. Thereafter, the process returns to step S1 of FIG.
On the other hand, when it is determined in step S51 that the number of games G has not reached the specified number, the process returns to step S43 to continue the game in the specific game mode.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications as described below are possible.
(1) In the present embodiment, the game in the specific game mode is played under a certain condition after the BB game is over. However, regardless of the end of the BB game, for example, as a first method, the game mode may be determined by the game mode determination unit 64 for each game or for a plurality of games. Also, as a second method, the game mode may be determined by the game mode determination means 64 when a special symbol combination is stopped and displayed.

(2) In the present embodiment, when the specific game mode is determined, after the BB game is over, the game of the specific game mode is performed up to 100 games. However, the present invention is not limited to this. For example, an upper limit may not be set for the number of games, and the game in the specific game mode may be continued unconditionally until BB is won again.
(3) In the present embodiment, the first probability table 62a and the second probability table 62b differ only in the winning probability of the re-gamer. However, the present invention is not limited to this, and the winning probabilities of special roles such as BB and small roles may be different.

  (4) In this embodiment, three types of specific small roles A to C are provided, but two types or four or more types may be provided. And when providing two types of specific small roles, what is necessary is just to provide the symbol which comprises both specific small roles in the position on the reel 31 more than 7 symbols apart.

  When a plurality of types of specific small roles are provided, two symbols constituting different specific small roles may be arranged at intervals within 7 symbols. In this case, when the stop switch 42 is turned on in the normal game mode or non-notification game mode and the stop switch 42 is turned on aiming at the symbol related to the specific small role, the specific small role is not won. When there is a specific small role related to winning within 7 symbols, the selected specific small role may accidentally win due to the stop control of the reel 31. For example, when 5 to 7 types of specific small roles are provided, depending on the arrangement of symbols constituting the specific small roles, it may be possible to draw in any of the symbols constituting 2 to 3 specific small roles. .

However, during the game of the specific game mode or the notification game mode, it is possible to surely win the selected specific small role, but at the time of the game of the normal game mode or the non-notification game mode, at least the specific game mode or notification The winning probability at the time of winning the specific small role is lower than that at the game mode. Therefore, there is no particular problem because a difference can be provided in the number of acquired medals between the specific game mode and the normal game mode, and between the notification game mode and the non-notification game mode.
In this case, if the range of the stop control of the reel 31 is not set within 5 symbols, but within 2 or 3 symbols, for example, two symbols constituting different specific small roles are spaced within 7 symbols. Even if it is arranged in the above, it is possible to avoid the case where the selected small role is won by chance.

  (5) In this embodiment, when the BB is won during the game of the specific game mode by the game mode determination means 65 during the special game, the game mode of the first game of the BB game related to the winning of the BB is notified. It was set as the aspect. However, regardless of whether the game won for the BB is a specific game mode or a normal game mode, a BB game of a notification game mode or a non-notification game mode may be performed uniformly. Alternatively, when a BB is won during a game of a specific game mode, the game mode of the first game of the BB game related to the winning of the BB is determined to be either a notification game mode or a non-notification game mode. Also good.

  (6) In the present embodiment, the game mode determination means 64 and the special game mode determination means 65 are provided separately, but the game mode determination unit 64 may also serve as the special game mode determination means 65. good. For example, first, the game mode determination means 64 determines the game mode after the end of the BB game as a specific game mode or a normal game mode, and informs the game mode of the first game during the BB game as a notification game mode or non-notification. The game mode may be determined. Secondly, when the game mode determining means 64 determines the game mode after the end of the BB game as the specific game mode, it simultaneously determines the game mode of the first game of the next BB game as the notification game mode, When the game mode after the end of the BB game is determined to be the normal game mode, the game mode of the first game of the next BB game may be simultaneously determined to be the non-notification game mode.

  (7) In the present embodiment, in the game of the specific game mode or the notification game mode, the specific small role won is notified so that the player can discriminate, but it is not limited to such notification. You may make it alert | report only that any one specific small combination is elected. Further, there may be provided two types, a mode for notifying only that a specific small role has been won and a mode for notifying the type of the selected specific small role, and selecting by lottery or the like.

  (8) Further, in the present embodiment, the character information display unit 24 and the winning notification display unit 25 are used as a notification method that a specific small role has been won, but the present invention is not limited to this. You may alert | report by the illumination of the pattern by the specific pattern of the backlight arrange | positioned inside, and the output of the specific sound from a speaker.

(9) In the present embodiment, the number of medals to be paid out at the time of winning a specific small role is all 15. However, the number may be less than that, or may be different for each specific small role.
(10) In the present embodiment, the drawing probability of the middle reel 31 and the right reel 31 among the symbols constituting the specific small role is 100%, but is not limited to this. The symbol of the left reel 31 of this embodiment may be arranged on any reel 31. Furthermore, the symbols may be arranged so that the drawing probability of the symbols constituting the specific small role is not 100% for all the reels 31.

  (11) In the present embodiment, when the winning of the specific small role is notified, it is performed from when the start switch 41 is turned on until all the stop switches 42 are turned on. However, if it is possible to carry over the right won for the specific small combination to the next game, it is possible to notify after all the stop switches 42 are turned on.

(12) In this embodiment, the winning is notified only when the specific small role is won in the game of the specific game mode or the notification game mode. However, although the winning probability of the specific small role is not 100%, it may be notified that there is a possibility of winning the specific small role.
In addition, for example, a notification is given only when a specific small role is won (the reliability of the notification is 100%), and a notification that there is a possibility that a specific small role is won, including when no winning is made (notification of notification) A case where the reliability is less than 100% may be provided.

  (13) In this embodiment, the probability determined to be the specific game mode or the normal game mode is set to ½, but the probability is not limited to this and may be set to any probability. For example, in a predetermined number of games after the end of the BB game, the probability determined to be the specific game mode may be 100%, and the game of the specific game mode may be executed after the end of the BB game.

  (14) Also, for example, only when the BB game is terminated without all the rights granted in the BB game being completed, or when the number of medals acquired by the player during the BB game falls below a predetermined number, etc. The specific game mode or the normal game mode may be determined.

(15) The winning probability of the re-gamer in the second probability table 62b is 1 / 1.6 in this embodiment. However, it is not limited to this value. If the winning probability of the re-gamer has a value greater than the probability that no player will win, and if the game can be continued without a decrease in the number of medals as in the normal game mode, how is the winning probability? May be set. Furthermore, the slope value of the second probability table 62b is not limited to that shown in the present embodiment, and may be a value exceeding 100%, for example.
(16) In a game of a specific game mode, the number of medals is slightly increased as the game continues by setting the winning probability of a re-playing role, the winning probability of a specified small role, and the number of payouts when winning a specified small role. It may be possible to arbitrarily set whether to decrease, maintain the current state, or increase slightly.

It is a front view showing the appearance of the slot machine in the present embodiment. It is a top view which shows 21 symbol arrangement | sequences of the outer peripheral surface of each reel in this embodiment. It is a figure which shows the combination in the embodiment and the symbol combination of the reel corresponding to the combination. It is a block diagram which shows the outline of control of the slot machine of this embodiment. It is a figure which shows the winning probability of the combination in the 1st probability table and 2nd probability table of this embodiment. It is a figure explaining the inclination value of a 1st probability table and a 2nd probability table. It is a figure explaining the inclination value in each game of a normal game mode and a specific game mode. It is a flowchart which shows the flow of the game from the game of a normal game mode to the completion | finish of BB game. It is a flowchart which shows the flow of the game in BB game with information. It is a flowchart which shows the flow of the game in a specific game aspect.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slot machine 20 Front panel 21 Display window 22 (22a-22e) Effective line 23 Medal slot 24 Character information display part 25 Winning notification display part 31 Reel 32 Motor 41 Start switch 42 Stop switch 60 Game control means 61 Role lottery means 62 Probability Table 62a First Probability Table 62b Second Probability Table 63 Special Game Execution Means 64 Game Mode Determination Means 65 Special Game Mode Game Mode Determination Means 66 Specific Game Mode Game Number Counting Means 67 Specific Small Role Winning Notification Control Means

Claims (8)

A plurality of roles including a plurality of types of specific small roles are each determined to have a predetermined winning probability, and the first probability table and the winning probability of the re-playing role that gives the player the right to re-play A probability table having a second probability table having a value equal to or higher than the probability of not winning any combination and a slope value set higher than the first probability table;
A role lottery means for drawing a role;
Using the first probability table, the lottery is performed by the combination lottery means, and even if the specific small combination is won by the combination lottery means, the player is not notified of the winning of the specific small combination. A normal game mode of performing,
Continuing at least a plurality of games on condition that the specific condition is not satisfied, the second lottery means is used for lottery by using the second probability table and specified based on the lottery result of the part lottery means A specific game mode in which the player is notified of the winning of the small role and plays,
A slot machine comprising: a game mode determining means for determining a game mode as the normal game mode or the specific game mode. The slot machine according to claim 1, wherein
The slot machine characterized in that the winning probabilities of the special combination and the small combination in the first probability table and the second probability table are set equal. The slot machine according to claim 1 or 2,
At least one of the symbols constituting the other specific small role is arranged at a position where at least one of the reels cannot draw the symbol constituting the selected specific small role by the reel stop control when the specific small role is won. As shown in the figure, the slot machine is characterized in that a plurality of types of symbols constituting specific small roles are arranged. In the slot machine according to any one of claims 1 to 3,
Special game execution means for performing a special game on the condition that the combination of symbols stopped on the active line matches the predetermined combination of symbols of the special role, as well as winning the special role by the role lottery means Prepared,
The gaming machine determining means determines a gaming mode after the end of a special game as the normal gaming mode or the specific gaming mode. In the slot machine according to any one of claims 1 to 4,
Special game execution means for performing a special game on the condition that the combination of symbols stopped on the active line matches a predetermined combination of symbols of the special role, as well as winning a special role in the role lottery means ,
Based on the lottery result of the role lottery means, a notification game mode for notifying the player of the winning of the specific small role and playing the game,
A non-notification game mode for playing a game without notifying the player of the winning of the specified small role even when the specified small role is won by the role lottery means,
A slot machine comprising: a special game mode determination means for determining at least a part of a game mode during a special game as the notification game mode or the non-notification game mode. The slot machine according to claim 4, wherein
Based on the lottery result of the role lottery means, a notification game mode for notifying the player of the winning of the specific small role and playing the game,
A non-notification game mode for playing a game without notifying the player of the winning of the specified small role even when the specified small role is won by the role lottery means,
A special game in-game mode determining means for determining at least a part of the game mode in a special game as the informing game mode or the non-informing game mode,
The game mode determining means during the special game, when a special role is won by the role lottery means during the game of the specific game mode after the end of the special game, at least one of the special games related to the winning of the special role The game mode of the part is determined as the notification game mode. In the slot machine according to any one of claims 1 to 6,
In the game of the specific game mode or the notification game mode, the specific small game is performed between the time when the start switch for starting the reel is operated and before the operation of all the stop switches for stopping the reel. A slot machine that notifies a player of winning of a role. In the slot machine according to any one of claims 1 to 7,
In the game of the specific game mode or the notification game mode, the slot machine is characterized in that the player is notified in a different mode for each specific small role so that the selected specific small role can be identified.

Images