JP4701284B2 - Game machine - Google Patents

Description

The present invention relates to a gaming machine that grants a prize privilege in accordance with a game operation, and more particularly to a gaming machine that sets a probability that the prize bonus should be granted and can change this setting.

As a conventional technique related to this type of gaming machine, there is known a gaming machine in which a setting value corresponding to a probability of generating a state advantageous to a player can be changed in stages (see, for example, Patent Document 1).
. This known gaming machine has setting control means for performing probability setting control, and the setting value is changed stepwise from 1 to 6 by giving an instruction regarding the setting value from the instruction means to the setting control means. Is possible. Further, the specific set value can be displayed by the display means, and at this time, the display means simultaneously displays whether or not the set value can be changed. Further, the setting control means is provided with a setting change mode in which the setting value can be changed and a setting confirmation mode in which only the confirmation display is possible. The display mode of the setting value can be varied depending on each mode. it can.

According to the above-described known gaming machine, for example, when a game hall operator or the like adjusts the gaming machine, whether or not the setting can be changed in the current mode by looking at the display mode of the display means. Since the determination can be made immediately, it is considered that the setting value can be changed smoothly by appropriately switching the mode if necessary.
JP 2003-52887 A (page 2-3, FIG. 3, FIG. 9, FIG. 10)

For this type of gaming machine, the higher the level it represents, the higher the probability of winning the lottery, and the higher the gaming machine's payout rate. It depends on the management of the amusement hall based on its management judgment. For this reason, from the point of view of a normal player, the level of the setting value of the gaming machine is a very important concern, and in the game room, finding a high setting base as much as possible in the game hall It is also an interest. On the other hand, from the point of view of a player who intends to illegally obtain a game, the setting value of the gaming machine is likely to be a good target for carrying out an illegal act.
Because the setting value can be changed illegally, it will be possible to get a lot of games against the will of the game hall operator, so an unauthorized player will try to intervene in changing the setting value in some way It is because it is considered enough.

In the case of the above-described known gaming machine, the setting value is incremented by one step each time the setting button switch is operated once when the setting is changed. For this reason, for example, if an illegal player continues playing to some extent and imagines that the set value of the stand is not so high due to the appearance status, etc., illegally intervene in the operation of the setting button switch This makes it possible to change the setting value one step above the current situation. Furthermore, if it is assumed that the unauthorized player continues to play in this state and the setting value is not so high yet, it is set again by illegally intervening in the operation of the setting button switch. The value can be changed. If such fraud is repeated several times, the set value of the gaming machine is raised to a high level that is not originally intended by the game hall operator, and many balls are illegally stolen.

Of course, such illegal setting changes are not easy, and even in known game machines, in order to shift the setting control means to the setting value change mode, a dedicated setting key managed by the game hall operator is used. It is necessary to operate the switch. However, since the operation signal of the setting key switch is merely a contact signal (ON signal) (see FIG. 9 of Patent Document 1), an unauthorized player inserts a metal piece or the like into the casing of the gaming machine, for example. The setting key change mode can be entered simply by forcibly short-circuiting the contact of the setting key switch (or the wiring connected thereto).
Furthermore, if the contact of the setting button switch is short-circuited many times in this state, it is possible to change the set value one step each time the contact signal (pulse signal) is input. End up.

Therefore, an object of the present invention is to take effective measures for preventing unauthorized setting changes in gaming machines.

(Solution 1)
The gaming machine of the present invention performs a lottery in accordance with a game operation by a player, and gives a predetermined prize to the player when the lottery is won. The game operation is, for example, various operations performed to start the fluctuation of the symbol by the symbol display in the case of the spinning-type game machine, or in order to win the game ball in the game area in the ball ball game machine It may be various operations to be performed. A lottery is performed in the gaming machine in accordance with such a game operation, and the probability of winning the lottery can be set in stages by a setting circuit. The setting value representing the setting stage can be changed by operating a predetermined switch. In particular, in the present invention, the setting value is not changed in a simple manner with respect to the switch operation.

(Solution 2)
That is, the gaming machine of the present invention performs a lottery in accordance with the player's gaming operation, and gives a predetermined prize bonus to the player when the lottery is won, and the configuration has a probability of winning the lottery. And a setting circuit that varies the degree of probability corresponding to the setting value representing the setting stage, and a switch that is connected to the setting circuit and is operated to change the setting value. When this switch is operated, it is provided with setting changing means for changing the setting value irregularly in a stepwise manner.

Also in the gaming machine of the present invention, the probability of winning the lottery is set stepwise in the setting circuit, and the level of probability varies depending on the set value representing the setting stage. For example, if the set value is represented by a natural number from 1 to N, the degree of probability is N stages in total, and if the set value is high in stages, the probability of winning a lottery is set higher. It can be said.

The setting changing means has a switch for performing the operation for changing the set value. However, even if the switch is operated, the set value is not changed step by step. The setting value is changed irregularly. Therefore, for example, before and after the change, the set value is more than two steps away, or once it was changed to the upper step by the first switch operation, it is changed to the lower step by the second switch operation. Or, even if the switch operation is repeated several times, the set value level does not change.

As a result, even if an unauthorized player tries to change the set value using a simple technique such as a contact short-circuit, the set value cannot be incremented step by step as intended. It can be effectively prevented.

(Solution 3)
In the above solution 2, the irregular setting value changing method by the setting changing means can be realized by, for example, the following modes.
As a first methodology, the setting change means changes the setting value in a manner that gradually advances the setting value step by step. In this change, the number of switch operations required until the setting value is advanced to the next step is made indefinitely different. be able to.

In this case, when the setting is changed, the setting value is gradually increased step by step. However, it is not constant how many times the switch operation is required to change the setting value by one step. For example,
When the setting is changed, the set value may be increased by a single switch operation, or the set value may not be increased even if the switch operation is performed twice or three times.

Therefore, even if an unauthorized player attempts to change the set value using a simple contact short-circuit technique, the set value is not always increased by at least one unauthorized operation. It is extremely difficult to raise the set value systematically to the stage. Furthermore, even if the set value is increased by several switch operations, the number of operations required to increase the next set value may be different from the previous one, making unauthorized setting changes increasingly difficult. .

(Solution 4)
Alternatively, in the solving means 2, the setting changing means changes the setting value in a stepwise manner in a stepwise manner, and the switch operation time required for the setting value to be advanced to the next step upon this change is indefinite. It may be different.

For example, it can be considered that the operation time of the switch, that is, the length of time during which the operation input to the switch is continued is replaced with the number of times of operation of the switch. In this case, even if a fraudulent player generates a contact signal once using a contact short circuit or the like,
Since the set value is not changed only by such a contact short in a short time, it is extremely difficult to make an illegal setting change in the same manner as the solution means 3 described above.

(Solution 5)
In the above solution 4, the setting changing means changes the setting value to the next stage only when the switch is operated for a predetermined specified time, while the setting value is set when the switch operating time does not reach the specified time. The value may be changed to a level below the current level.

In this case, in order to advance the set value to the next stage, the switch must be continuously operated for a specified time. Otherwise, the set value is maintained as it is or changed to a lower stage than the current level. Will be. Therefore, when a fraudulent player attempts a simple contact short-circuit technique, not only does the set value not be increased by generating a contact signal once, but it may also shift to a lower stage than the current level. Therefore, it is not easy to achieve the fraudulent purpose. In particular, if the set value shifts to a lower level than the current state, the illegal player will bring an unfavorable game condition on his own, and the misconduct will be lost and self-employed.

(Solution 6)
Alternatively, in the above solution 2, the setting change unit has a change pattern that is irregularly determined in advance in the order of changing the set values, and is determined by the change pattern when an operation is performed on the switch. The set value may be changed according to the change order.

In this case, the change pattern has a predetermined change order in the set value, and the set value is changed according to a fixed change order every time the switch is operated. Then, it can be said that the setting value is changed to “irregular in terms of steps”. Accordingly, in this case as well, it is extremely difficult to make an illegal setting change using a simple contact short circuit or the like.

(Solution 7)
Next, as a second methodology, in the above solution 2, the setting change unit has a plurality of switches corresponding to each stage of the set value, and corresponds to the switch that has been operated among the plurality of switches. It is possible to change the set value directly to the stage.

In the first methodology described above, various cases are described in which a single switch operation does not necessarily correspond to a setting value advance change. In the second methodology, the set value is changed to each stage according to the switch operation. Irregularity is realized by changing directly. For example, when a setting value that the game hall operator intends to change is determined for the current situation, it can be changed directly to a desired setting value by operating a specific switch corresponding to that stage. In this case as well, since the setting value is changed in succession on the basis of the switch operated when changing the setting, the setting value is changed to “irregular in terms of steps” as in the first methodology. .

In order to make each step of the set value correspond to the switch operation, it is necessary not to generate a simple contact signal by the switch operation but to generate a signal representing the set value step according to the operated switch. Arise. Therefore, since it is technically impossible to change the set value only by a simple contact short-circuit, an illegal setting change can be reliably suppressed.

(Solution 8)
More specifically, in the above solution means 7, the setting changing means generates an identification signal indicating the stage of each corresponding set value when an operation is performed on the switch, and at the stage represented by this identification signal. A mode in which the set value is changed is preferable. As the identification signal, for example, a coded set value stage can be used, and the setting value cannot be changed unless the identification signal is generated by a proper switch operation.

(Solution 9)
The gaming machine of the present invention can be further added with the following configuration.
That is, in the above solutions 2 to 8, the gaming machine of the present invention covers the front surface of the main body,
An openable / closable door member that shields the switch inside, a display means provided on the door member capable of displaying a set value, an open / closed state detecting means for detecting an open / closed state of the door member, and an open / closed state detecting means Only when it is detected that the door member is opened, a display permission unit that allows the display unit to display the set value may be further provided.

For example, when a set value is regularly changed under the management of a game hall operator, a mode in which the door member covering the front of the main body of the gaming machine is unlocked, and this is opened to operate the switch is normal. . In this case, it is possible to confirm at which stage the current set value is in the display means,
The operator can confirm the target setting value, confirm the change of the setting value, and finish the work. Thereafter, when the door member is closed and locked, the switch is shielded on the inside thereof, so that the normal player does not see the switch and the operation is not performed.

On the other hand, a player who intends to cheat attempts to act illegally by, for example, inserting a metal piece or the like inside the main body of the gaming machine through a shielded portion by a door member. In such a case, even if the setting circuit shifts to a state in which the setting value can be changed, if the door member is closed, the display of the setting value by the display means is not permitted. The user does not specifically know the current setting value or the changed setting value.

As described above, if the gaming machine is added with a function of not displaying the setting value when the door member is closed, the information on the setting value is not stolen by an unauthorized player. In addition, as described above, coupled with the fact that the setting value is changed irregularly in a stepwise manner, it is possible to effectively exert the deterrent effect.

(Solution 10)
Further, in the above solution means 2 to 9, the setting change means changes the set value irregularly when the switch is shielded on the inside with the door member covering the front surface of the gaming machine main body closed. The setting value may be changed step by step when the switch is opened to the front side of the gaming machine main body with the door member opened. In this case, it is preferable that the gaming machine further includes the above-described open / close state detection means for detecting the open / close state of the door member.

Alternatively, in the solving means 2 to 8, the gaming machine further comprises an openable / closable door member that covers the front surface of the main body and shields the switch inside thereof, and an open / closed state detecting means that detects the open / closed state of the door member. It may be provided. In this case, the setting change means irregularly changes the set value when the door member is detected to be closed by the open / close state detection means, while the door member is opened by the open / close state detection means. It is also possible to adopt a mode in which the set value is changed step by step when it is detected.

In any case, when an illegal setting change is made with the door member closed, fraudulent acts are effectively prevented by the solving means 2 to 8 described above. On the other hand, when the setting value is regularly changed under the management of the game hall operator, the setting value is changed stepwise because the door member is normally opened. The set value is incremented by one step according to the number of switch operations. For this reason, it is convenient for the game hall operator to easily change the target setting value. In particular, if the setting value display by the display means is allowed when the door member is opened, the change operation can be performed while checking the setting value, which is further convenient.

In the gaming machine of the present invention, the setting value changing logic, which has been a simple mechanism in the past, can be advanced, and changing the setting value due to fraud can be made extremely difficult.

Embodiments of the present invention will be described along the following items with reference to the corresponding drawings.
1. 1. Outline of Embodiment 1-1. Basic configuration of the gaming machine (Figure 1)
1-2. Internal configuration of gaming machine (Figure 2)
2. 2. Description of components 2-1. Setting circuit 2-2. Setting change means 2-3. 2. Conventional example of setting change 3. Description of specific methodology 3-1. First methodology (Figs. 3-7)
3-1-1. Setting change processing (1)
3-1-2. Setting change process (2)
3-1-3. Setting change process (3)
3-2. Second methodology (Figs. 8 and 9)
3-2-1. Setting change process (4)
4). Description of additional elements (Figure 10)
4-1. 4. Interlock processing Reference to other embodiments.

(1. Overview of Embodiment)
Here, as an example of a gaming machine, a swivel type gaming machine (slot machine) is cited, but the gaming machine of the present invention is a slot machine game using a gaming ball in addition to a ball-type gaming machine represented by a pachinko machine. It can also be implemented as a type of gaming machine that implements.

(1-1. Basic configuration of gaming machine)
FIG. 1 shows a swivel type gaming machine (hereinafter simply referred to as a “slot machine”) 1 that can be cited as an embodiment. The slot machine 1 has a box-shaped housing 2 and is installed in an island facility or the like of a game arcade based on the housing 2. In the island facility, a plurality of slot machines 1 are arranged in a row in the width direction, and usually a medal sand (not shown) between the stands.
Is arranged to come. When cash is inserted into the medal sand, medals corresponding to the inserted amount are lent out, and the player can execute a game using these medals. The game medium is not limited to medals and coins, but may be a game ball or token. Alternatively, the game may be executed by inserting a prepaid card into the inter-bed sand and exchanging the remaining frequency and medals.

The housing 2 has a front door 4 on the front surface facing the player, and the front door 4 can be opened toward the front centering on one side end (left side end in this example). The front door 4 has a transparent plate 6 at its middle position, and a display window 8 having a substantially rectangular shape is formed at the center thereof.

The slot machine 1 of one embodiment is equipped with three reels (left reel, middle reel, right reel) 10a, 10b, 10c as an example of a mechanical symbol display.
0a, 10b, and 10c are arranged in the back of the front door 4, that is, inside the housing 2.

Each reel 10a, 10b, 10c has a reel band around the outer periphery,
Various patterns are attached to the surface. Although not all are shown in FIG. 1, for example, a design of the numeral “7”, a design of a specific alphabet (or its character string), and a sign such as a bell Stuffs, watermelons, apples, cherries, oranges and other fruits, or characters, figures, symbols, etc. that characterize the model of the slot machine 1 are included.

The slot machine 1 can change or stop the display mode of the symbols by rotating or stopping the reels 10a, 10b, and 10c. From the front surface of the slot machine 1, only a part of the reels 10a, 10b, 10c is visible through the display window 8, and three symbols are vertically displayed for each reel 10a, 10b, 10c when stopped. It is displayed effectively.

Display areas 12 and 14 are respectively formed on both sides of the display window 8 in the transparent plate 6.
Various character information and symbol information are attached to these display areas 12 and 14 in a predetermined arrangement.
A lamp unit (not shown) is disposed behind the transparent plate 6, and information in the display areas 12 and 14 is lit and displayed by light transmitted through the lamp. For example, when a player first inserts a medal through the medal insertion slot 15, the bet number is added according to the number of inserted coins. At this time, a bet lamp (medal line lamp) corresponding to the bet number is displayed in the display area 12 on the left side. Lights up. When the number of bets reaches the maximum (for example, 3 bets), the inserted medals are stored as credits, and the credits are numerically displayed on the display unit 16.

For example, up to 50 credits can be stored, and if there is sufficient credit remaining after one game, that amount can be passed to the next bet. The bet number is selected by operating the bet buttons 18, 20, and 22.
Reference numerals 20 and 22 respectively correspond to a single bet (single), 2 bets (two), and MAX bets (three).

In any case, when the player operates the start lever 24 while the bet lamp is lit, the reels 10a, 10b, and 10c start to rotate all at once, and the symbols change. Further, when the player operates the stop buttons 26, 28, and 30, the reels 10a, 10b, and 10c corresponding to the left, middle, and right respectively stop rotating, and the variation of symbols stops. At this time, the display window 8
When a certain symbol combination (for example, a state in which specific symbols are aligned in a row) is displayed on the winning line that is validated in the game, a prize bonus is given to the player. Examples of the winning award include payout of a predetermined number of medals and transition to a special gaming state (so-called big bonus game, regular bonus game, assist time, challenge time, etc.) A person can receive more medals by executing a special game.

As is well known, machine operation by reel control intervenes at the stop positions of the reels 10a, 10b, 10c. For this reason, as a result of the lottery performed each time, even if the target (combination of symbols) for which the flag is not turned on is aimed, the symbol targeted at the position intended by the player may not stop. On the contrary, if the flag is ON for a specific role, there is a case where a specific symbol is arbitrarily drawn to the position on the winning line by reel control, so there is no special technical intervention of the player at this time Even the patterns can be arranged. In any case, in the following description, the realization of a predetermined symbol arrangement on each effective winning line is referred to as “winning”.

When a prize is won by the above game operation, the number of medals paid out according to the type of symbol at that time is displayed on the display unit 32. Further, when winning a big bonus game or a regular bonus game, the number of remaining games is displayed on the display unit 34 during the progress. The medals that have been paid out are stored as credits until the number of credits on the display unit 16 is maximized, and medals exceeding the maximum number of credits are paid out to the tray 38 through the payout opening 36. In addition, the player can release the medal storage (credit) by operating the credit check button 40, and can request the return of the medal stored until then.

The slot machine 1 according to the present embodiment has a liquid crystal display 42 above the display window 8, and the liquid crystal display 42 is used to provide images for effects and various bonus games as the game progresses. The number of medals is displayed. In addition, a pair of speakers 44 are provided on the left and right sides of the payout opening 36, and these speakers 44 are used for sound effects and BG accompanying the progress of the game
M, voice, etc. can be output. In addition, the front door 4 has lamps 45, 46, 4 in various places.
8 are arranged, and these lamps 45, 46, and 48 can perform effects by light-emitting decoration as the game progresses.

(1-2. Internal structure of gaming machine)
FIG. 2 schematically shows configurations of various mechanism elements, electronic devices, operation members, and the like that are installed in the slot machine 1. The slot machine 1 has a main control board 50 for comprehensively controlling the progress of the game. The main control board 50 includes a CPU 52 and a ROM 5.
4. An electronic circuit such as the RAM 56 is mounted. The main control board 50 also has an interface 58 for exchanging information with external devices and a counter 6 for generating random numbers for lottery.
2 etc.

The bet buttons 18, 20, 22, start lever 24, stop buttons 26, 28, 30
The settlement buttons 40 and the like are all connected to the main control board 50, and these operation buttons can detect an operation by a player using a sensor (not shown) and output an operation signal to the main control board 50. it can.

The casing 2 of the slot machine 1 accommodates other devices together with the main control board 50, and various signals are input to the main control board 50 from these devices. The devices include a medal selector 64, a reel device 66, a hopper device 68, and the like. Among these, the medal selector 64 detects medals inserted from the medal insertion slot 15 one by one, and the detection signal is sent to the main control board 50. Output.

The reel device 66 is configured as a unit including the reels 10a to 10c. The reel device 66 has an index sensor (not shown) for detecting a reference position related to the rotation of each reel 10a, 10b, 10c, and a detection signal (index signal) from these index sensors is a main control board. 50 is input. The hopper device 68 has a payout sensor (not shown) that detects the payout medals one by one.
A detection signal for each medal is input to the main control board 50 from the payout sensor.

On the other hand, a control signal is output from the main control board 50 to the reel device 66 and the hopper device 68. That is, the reel device 66 has a built-in stepping motor (not shown) for rotating the reels 10a, 10b, and 10c, and a drive pulse signal for controlling the start and stop of these stepping motors is the main control. Output from the substrate 50. The hopper device 68 receives a payout signal from the main control board 50 in accordance with the type of the winning symbol, and the hopper device 68 performs a medal payout operation based on the payout signal.

The slot machine 1 includes an effect control board 70 in addition to the main control board 50. In addition to the CPU 72, the effect control board 70 includes ROM, RAM, interface, VDP (not shown).
(Video display processor), sound source IC, audio amplifier, and the like.
The effect control board 70 receives various command signals from the main control board 50 and controls the operations of the liquid crystal display 42, the display units 16, 32, 34 and the speaker 44, and lamps 45, 46, 48.
Controls lighting or blinking of.

Further, an external terminal board 74 is connected to the main control board 50, and the slot machine 1 is connected to the hall computer 76 in the game hall via the external terminal board 74. The external terminal board 74 relays the inserted medal signal and the payout medal signal transmitted from the main control board 50 or the signal during the big bonus game or the regular bonus game (JAC game) to the hall computer 76.

In addition, a power supply unit 80 is accommodated in the housing 2. This power supply unit 80
Takes in electric power from an external power source and generates electric power necessary for the operation of the slot machine 1. The electric power generated here is supplied from the power supply unit 80 to each unit.

(2. Explanation of components)
Next, the components of the present invention applied to the slot machine 1 of one embodiment will be described.

(2-1. Setting circuit)
The setting circuit is composed of a main control board 50. Specifically, its CPU 52, ROM 54, R
For example, AM56. The main control board 50 performs a lottery when the start lever 24 is operated, for example, and determines whether or not a prize bonus should be given to the player from the result of the lottery. The setting circuit sets the probability of winning the lottery step by step, and varies the level of the lottery probability according to the set value representing the step. Note that the settings and setting values of the slot machine 1 have the same properties as known ones, and an outline thereof will be described here.

In the slot machine 1 according to the present embodiment, for example, setting in six stages is possible in the setting circuit, and the probability that the above-mentioned winning award should be given differs according to the setting values (1 to 6) representing the respective stages. Specifically, the ROM 54 of the main control board 50 has six table data (1
-6) are stored, and in these table data (1-6), big bonuses and regular bonus hit values for all random numbers (for example, 16384) are given in advance. Of these, the table data (1) has the smallest winning value for the big bonus and the regular bonus, whereas the table data (2), (3), and (4) have the winning value up to the table data (5). The number has been increased. Of all the table data, the table data (6) has the largest winning value of the big bonus.

The CPU 52 of the main control board 50 determines the winning by collating the random value acquired from the counter 62 with the winning value of the table data during the normal game, and if a bonus game is hit, the corresponding symbol flag Set to ON. In this case, when the stop button 26, 28, 30 is operated near the symbol aimed by the player, the symbol stops at the stop position within the range (for example, within four symbols) possible by the reel control, so that each bonus It becomes easy to win with a symbol corresponding to the game.

Here, which table data (1 to 6) is used for the hit determination during the normal game depends on the set value, and the hit determination is performed using the table data having a larger number of hit values. The higher the setting, the higher the probability of winning a lottery, and it can be said that the gaming machine payout rate is set higher accordingly. Such numbers of the table data (1 to 6) are referred to as settings 1 to 6 in comparison with the high and low stages of the payout rate, and numerical values 1 to 6 are set values, respectively.

Specifically, if a game machine is set to make a hit determination using table data (1) during a normal game, it is set to 1 or the setting of the game machine is 1. It is referred to as being a game machine with setting 1 or the like, and it can be said that the setting value at this time is 1. Similarly, if the table data (2) to (6) are set to make a hit determination, they are referred to as settings 2 to 6, respectively, and these 2 to 6 are the set values at that time. Become.

(2-2. Setting change means)
Next, the setting change of the gaming machine will be described. As described above, the setting of the gaming machine determines the level of the probability of the winning privilege given to the player and is directly related to the payout rate of the gaming machine. The specific setting of the game machine is strictly managed and operated according to the management judgment of the game hall operator. Therefore, when changing the set value assigned to each gaming machine, the changing work is performed under a strict management system by the game hall operator.

In order to change the setting value, the power supply unit 80 of the slot machine 1 is provided with switches. That is, the power unit 80 is provided with a setting key switch 84, a reset switch 86 and the like in addition to the power switch 82. The power switch 82 is a slot machine 1
This is for turning the power supply to ON-OFF, but is also operated when shifting the setting circuit to the setting change mode. The reset switch 86 is for canceling an error that has occurred in the slot machine 1, and is also operated when changing the set value together with the setting key switch 84.

None of these switches are exposed to the outside of the housing 2 and can be operated only by opening the front door 4. In particular, a dedicated setting key is used to operate the setting key switch 84. is necessary. The front door 4 is locked by a lock device, and the front door 4 cannot be opened unless the lock is released using a dedicated door key.

To change the set value, first, the lock is released using a dedicated door key, the front door 4 is opened, and the power supply box 80 is exposed. Next, the power switch 82 is operated to turn off the power of the slot machine 1. In this state, a dedicated setting key is inserted into the setting key switch 84 and is turned to the right by about 90 degrees. Next, when the power switch 82 is operated with the setting key inserted into the setting key switch 84 and the slot machine 1 is turned on, the CPU 52 of the main control board 50 performs the setting change mode, that is, the setting value changing operation. Can be accepted.
The set value (any one of 1 to 6) at this time is numerically displayed on the display unit 16 of the front door 4.

When the reset switch 86 is operated during the setting change mode, information indicating that the change operation has been performed is transmitted to the main control board 50 and the effect control board 70, respectively. The main control board 50 accepts the changing operation based on this information, for example, rewrites the setting value stored in the RAM 56 and records fact information that the setting change has been performed at the same time. At this time, the effect control board 70 also records the fact of the setting change together with the changed setting value.

Thereafter, when the setting key switch 84 is turned to the left to return it to its original position, the operation signal is transmitted to the main control board 50. When the operation signal is recognized, the main control board 50 does not accept any further change operation, and cancels the setting change mode at this point.

(2-3. Conventional example of setting change)
As described in the background art above, the main control board 50 is a conventional setting change logic.
When the reset switch 86 is operated once in the state where the setting circuit is in the setting change mode, the setting value is incremented by one step, and when it is incremented to the upper limit of 6, the pattern is set back to 1. It was. Further, in accordance with the change of the set value, the display unit 16 displays a numerical value obtained by adding 1 to the previous set value.

In this way, the operator operates the reset switch 86 several times while confirming the display on the display unit 16 until the desired set value is reached. When the desired set value is reached, the operator operates the start lever 24 to determine the set value. Let Then, the setting key switch 84 is turned 90 degrees to the left to return to the original position, the inserted setting key is removed, and the setting change is completed. Thereafter, the front door 4 is closed and locked, the door key is removed, and the slot machine 1 is returned to the operating state.

The setting change logic as described above is convenient when performing a setting value changing operation, but has a vulnerability that it is easily abused by a player who intends to cheat. Therefore, in this embodiment,
Adopting a new mechanism for setting change logic, it strongly blocks setting changes due to fraud.

(3. Explanation of specific methodology)
Hereinafter, a specific methodology of the setting change logic employed in the present embodiment will be described.

(3-1. First Methodology)
First, as a first methodology, a method in which the number of operations of the reset switch 86 until the current set value is advanced to the next stage when setting is changed will be taken up.

(3-1-1. Setting Change Processing 1)
FIG. 3 specifically shows the procedure of the setting change process (1) executed by the CPU 52 of the main control board 50. First, when the power is turned on, the CPU 52 determines whether or not the setting circuit of the main control board 50 is in the setting change mode (step S11). If it has not shifted to the setting change mode (step S11 = No), the CPU 52 stands by here and does not execute the next process. If the determination in step S11 is negative (No), the setting change process (1) may be terminated at that time.

On the other hand, if it is determined that the setting circuit is in the setting change mode (step S11 = Yes)
Then, the CPU 52 proceeds to step S12, and determines the number of operations of the reset switch 86 required for the current set value to be incremented by one step. At this time, the CPU 52 randomly determines the number of times (eg, about 1 to 10 times) without any regularity, and stores the determined number in the RAM as a specified value.

Next, the CPU 52 determines whether or not the set value after the change has been confirmed (step S13).
The set value can be determined by, for example, whether or not the start lever 24 is operated.
If the start lever 24 is not yet operated at this time (step S13 = No), CP
U52 then proceeds to step S14.

In step S14, the CPU 52 determines whether or not the reset switch 86 has been operated. While the reset switch 86 is not operated (step S14 = No), the CPU
52 waits for the operation of the reset switch 86 while repeating steps S13 and S14.

When the reset switch 86 is operated (step S14 = Yes), the CPU 52 next determines whether or not the number of operations has reached the specified value (step S15). For example, if the reset switch 86 is operated once at this time and the specified value is 2 or more,
Since the number of operations has not yet reached the specified value (step S15 = No), the CPU 52 returns to step S13 and continues to steps S13 and S14 until the reset switch 86 is operated next.
It will be in a standby state while repeating.

Thereafter, when the number of operations of the reset switch 86 reaches a specified value (step S15 = Ye).
s) At this point, the CPU 52 changes the set value (step S16). Accordingly, the set value is changed by one step, and the changed set value is displayed on the display unit 16 as a numerical value.

Further, when the set value is changed, the CPU 52 returns to step S12 and again determines the next number of operations. Here again, the CPU 52 can randomly determine the number of operations, and the determined number of operations is stored in the RAM as a new specified value.

When the start lever 24 is operated at this time and the changed set value is confirmed (step S1).
3 = Yes), the CPU 52 ends the setting change process (1) here. On the other hand, when the reset switch 86 is continuously operated (step S14 = Yes), the CPU 52 determines whether or not the number of operations has reached the newly determined specified value (step S15). When the specified value is reached, the set value is further changed (step S16).

Thereafter, the CPU 52 repeats steps S12 to S16 until the set value is confirmed,
During this time, every time the set value is changed, the next number of operations is newly determined.

As described above, in the setting change process (1), the number of operations of the reset switch 86 required to change the set value every time is determined at random, and therefore, the number of operations of the reset switch 86 corresponds to the number of increments of the set value. No longer. For this reason, even if an unauthorized player attempts to change the set value using a simple technique such as a contact short circuit, it is extremely difficult to make an unauthorized change to the set value as aimed from the current state.

(3-1-2. Setting Change Process 2)
In the setting change process (1), the number of operations of the reset switch 86 can be replaced with the operation time for determination. In other words, the reset switch 86 determines whether or not the set value should be changed depending on the length of time that the operation has been continued.

FIG. 4 specifically shows the procedure of the setting change process (2). Here again, CPU 5
2 determines whether the setting circuit of the main control board 50 is in the setting change mode when the power is turned on (step S21). If the setting change mode has not been entered at this time (step S2
1 = No), the CPU 52 stands by here and does not execute the next process.

Next, when it is determined that the setting circuit is in the setting change mode (step S21 = Yes), CP
In step S22, U52 determines the operation time of the reset switch 86 required for the current set value to be increased by one step. At this time, the CPU 52 randomly determines an operation time (for example, about 1 to 10 seconds) without any regularity, and stores the determined operation time in the RAM as a specified time.

Next, the CPU 52 determines whether or not the changed set value has been confirmed (step S23).
If the start lever 24 is not yet operated at this time (step S23 = No), CP
U52 then proceeds to step S24.

In step S24, the CPU 52 determines whether or not the reset switch 86 has been operated. While the reset switch 86 is not operated (step S24 = No), the CPU
52 waits for the operation of the reset switch 86 while repeating steps S23 and S24.

When the reset switch 86 is operated (step S24 = Yes), the CPU 52 next determines whether or not the operation time has reached the specified time (step S25). For example,
Assuming that the specified time is 1 second or longer, if the reset switch 86 has not been operated (pressed in) for longer than the specified time (step S25 = No), the CPU 5
2 then proceeds to step S26.

In step S26, it is determined whether or not the operation of the reset switch 86 is continued. If the operation is continuing (Yes), the CPU 52 returns to step S25 and repeats the determination of the operation time.

On the other hand, if it is determined in step S26 that the operation of the reset switch 86 has been interrupted (No), the CPU 52 proceeds to step S27 and changes the set value to 1. As a result,
Even if the set value is 2 to 5 at present, the set value is forcibly pulled back to 1 in all cases where the operation time of the reset switch 86 does not reach the specified time. If the set value is 1 at present, even if the set value is changed to 1 in step S27, there is no apparent change in the set value, but it still does not move up to the current level. The result will be changed.

On the other hand, if the operation time of the reset switch 86 has reached the specified time (step S
25 = Yes), at this time, the CPU 52 changes the set value (step S26). Accordingly, the set value is changed by one step, and the changed set value is displayed on the display unit 16 as a numerical value. At this time, when the operator confirms the change of the setting value on the display unit 16, the operation of the reset switch 86 can be canceled.

Further, when the setting value is changed, the CPU 52 returns to step S22 and again determines the next operation time. Here again, the CPU 52 can randomly determine the operation time, and the determined operation time is newly stored in the RAM as a specified time. Similarly, when the set value is forcibly changed to 1 in step S27, the operation time is newly determined by returning to step S22.

At this time, when the start lever 24 is operated and the set value after the change is confirmed (step S2).
3 = Yes), the CPU 52 ends the setting change process (2) here. On the other hand, when the reset switch 86 is operated again (step S24 = Yes), the CPU 52 determines whether or not the operation time has reached the newly determined time (step S25). When the current time reaches the specified time, the set value is further changed (step S26). In addition,
If the operation of the reset switch 86 is interrupted without reaching the specified time, the CPU 52 proceeds to step S27 as described above and forcibly changes the set value to 1.

Thereafter, the CPU 52 repeats steps S22 to S26 until the set value is confirmed,
During this time, every time the set value is changed, the next operation time is newly determined.

As described above, in the setting change process (2), the operation time of the reset switch 86 required to change the set value every time is randomly determined. In this case, since the set value is not changed by simply operating the reset switch 86 once, even if an unauthorized player tries to change the set value using a simple contact short-circuit technique, the target is not changed. It is extremely difficult to make unauthorized changes to the set values as they are. In particular, when a pulse signal is generated only once due to a contact short-circuit of the reset switch 86, the CPU 52 executes step S27, and the set value is forcibly changed to 1 at any time. As a result, even if the current setting value is a relatively high level, the fraudulent player himself suffers a disadvantage because the setting value reverts to 1 due to the act of cheating. Will be invited.

(3-1-3. Setting Change Process 3)
FIG. 5 specifically shows the procedure of the setting change process (3). Here again, CPU 5
2 determines whether or not the setting circuit of the main control board 50 is in the setting change mode when the power is turned on. If the setting circuit has not shifted to the setting change mode (step S31 = No), the CPU 5 continues.
2 waits here.

When the setting circuit shifts to the setting change mode (step S31 = Yes), the CPU 52 next proceeds to step S32, where a predetermined setting change table is selected. CPU 5
2 determines whether or not the setting value has been confirmed next (step S33). If the setting value has not yet been confirmed (No), steps S33 and S34 are repeated until the reset switch 86 is operated. When the reset switch 86 is operated (step S34 = Yes), the CPU 52
Determines a setting value according to the setting change table selected in step S32 (step S35).

Here, the setting change table used in the setting change process (3) is table data that is irregularly determined in advance by stepwise changing the setting value change pattern. For example, the following can be considered.

FIG. 6 shows a first example of table data that can be used as a setting change table. This table data records a change pattern in which one set value (1 to 6) is assigned in advance to the number of operations of the reset switch 86 (how many times), and in the initial state (number of operations 0). Assuming that the set value is 1, when the number of operations changes from this state to the first, second, third,..., A preset set value is assigned for each operation count.

When the table data of FIG. 6 is used in the setting change process (3), for example, the number of operations is 1.
The set value remains 1 until the second time, and finally the set value is incremented to 2 when the number of operations is the third time. However, when the number of operations reaches the fourth time, the set value returns to 1 and then further increases to 6
The set value remains 1 until the first time. When the number of operations reaches the seventh time, the setting value jumps from 1 to 3 by two steps, but at the next eighth time, the setting value returns to 1 again.

Similarly, when a certain number of operations is reached, the set value jumps from 1 and jumps directly to 4-6, but at the next number of operations, the set value returns to 1, and the state of the set value 1 continues several times. It has become. As described above, in the table data of FIG. 6, the setting value is most often 1 with respect to the total number of operations of the reset switch 86, and the chance that the setting value is changed to a level higher than 1 is relatively small.

Next, FIG. 7 shows a second example of table data. This table data also records a change pattern in which one set value (1 to 6) is assigned in advance to the number of operations of the reset switch 86 (how many times), but here the number of operations increases. The set value is raised in an irregular step shape.

That is, assuming that the set value is 1 in the initial state (number of operations = 0), the number of operations is 1-3.
The set value remains unchanged until the first time, and the set value is incremented to 2 only after the fourth operation. Next, even if the reset switch 86 is operated, the set value remains unchanged, and the set value is increased to 3 when the number of operations is the sixth. Similarly, the number of operations until the set value is incremented from 3 to 4 is 1, but the number of operations until the set value is incremented from 4 to 5, and 5 to 6 is 2, respectively.

When the table data of FIG. 7 is used in the setting change process (3), the set value is incremented in order from 1, but the number of operations required to advance to the next stage is indefinite. Therefore, when the table data of FIG. 7 is used, a result similar to the setting change process (1) described above is obtained.

In any case, each time the reset switch 86 is operated, the CPU 52 determines a setting value corresponding to the number of operations (how many times) from the setting change table (step S3).
5). At this time, the set value is not always changed before and after the operation of the reset switch 86, and the set value may not be changed even if the reset switch 86 is operated. At this time, since the setting value is displayed again on the display unit 16, the operator operates the reset switch 86 several times until the target setting value is changed.

When the start lever 24 is operated when the set value is changed to the desired set value and the changed set value is confirmed (step S33 = Yes), the CPU 52 ends the setting change process (3).
On the other hand, when the reset switch 86 is continuously operated (step S34 = Yes).
The CPU 52 again determines a setting value corresponding to the next number of operations from the setting change table (step S35). Thereafter, the CPU 52 performs step S33 until the set value is confirmed.
Repeat steps S35.

As described above, in the setting change process (3), setting values are assigned in advance corresponding to the number of operations (how many times) the reset switch 86 is operated. Will not correspond.

In particular, in the table data of FIG. 6, the setting value is most often 1 with respect to the total number of operations of the reset switch 86, and there is relatively little opportunity for the setting value to be changed to a level higher than 1.
For this reason, even if an unauthorized player tries to change the setting value using a simple trick such as a contact short circuit, it is extremely difficult to change the setting value illegally from the current state to the targeted stage. Furthermore, it becomes difficult to change the set value to other than 1. In other words, there is a high probability that the setting value will be set back to 1 by an unauthorized operation even though it is a relatively high setting value at present. It is easy to invite a new situation.

(3-2. Second methodology)
Next, a second methodology will be described in which the setting value is changed directly to a target setting value by operating a switch when the setting is changed.

In the first methodology, a contact signal is generated by operating the reset switch 86, and this is received by the main control board 50, and the number of operations and operation time are counted to change the set value.
In the second methodology, an identification signal representing a set value is generated, and is decoded directly by the main control board 50 to directly change to a desired set value.

FIG. 8 schematically shows a configuration example for realizing the second methodology. In this case, the power supply box 80 is provided with a plurality of code switches 90a, 90b, 90c, and code signals representing setting values from 1 to 6 are assigned to the code switches 90a, 90b, 90c. Yes. In the configuration example of FIG. 8, three code switches 90a and 90b are used.
, 90c are provided, and six kinds of code signals are generated by combinations of these ON or OFF.

For example, the code signals representing the set values 1 to 3 are code switches 90a, 90b,
90c is assigned independently. The code signal representing the setting value 4 is assigned to two combinations of code switches 90a and 90b, for example. The code signal representing the set value 5 is assigned to, for example, two combinations of code switches 90b and 90c. The code signal representing the set value 6 is assigned to three combinations of the three code switches 90a, 90b, and 90c. Note that the power supply box 80 may be provided with six code switches so as to correspond to the set values of 1 to 6, respectively.

(3-2-1. Setting Change Process 4)
FIG. 9 specifically shows the procedure of the setting change process (4) executed by the CPU 52.
Similarly, when the power is turned on, the CPU 52 determines whether or not the setting circuit of the main control board 50 is in the setting change mode (step S41). If it has not shifted to the setting change mode (step S41 = No), the CPU 52 stands by here. Step S
If the determination of 41 is negative (No), the setting change process (4) may be terminated at that time.

On the other hand, if it is determined that the setting circuit is in the setting change mode (step S41 = Yes)
Then, the CPU 52 proceeds to step S42, and determines whether or not the set value has been confirmed. If the start lever 24 is not yet operated at this time (step S42 = No),
Next, the CPU 52 proceeds to step S43.

In step S43, the CPU 52 determines whether or not the code signal has been changed. For example, if the set value is 1 at present, a code signal representing this is transmitted from the power supply box 80 to the main control board 50. However, if the code switch 90 is not particularly operated, the code signal is changed to this time. There is no. Therefore, the CPU 52 waits for the operation of the code switch 90 while repeating steps S42 and S43 while the code signal is not changed (step S43 = No).

When the code switch 90 is operated to change the set value, a different code signal is generated and transmitted to the main control board 50, so that the CPU 52 determines that the code signal has been changed (step S43 = Yes), the set value is directly changed to the stage represented by the code signal at this time (step S44). As a result, the changed set value is displayed numerically on the display unit 16.

Further, when the set value is changed, the CPU 52 returns to step S42 to determine whether or not the set value has been confirmed. At this time, when the start lever 24 is operated and the changed set value is confirmed (step S42 = Yes), the CPU 52 ends the setting change process (4). On the other hand, when the code switch 90 is continuously operated to change the code signal (
In step S43 = Yes, the CPU 52 directly changes the set value to the stage represented by the changed code signal (step S44). Thereafter, the CPU until the set value is confirmed
52 repeats steps S42 to S44.

As described above, in the setting change process (4), the code signal and the code switch 9 are changed when the setting is changed.
The set value is changed only after the combination with the operations of 0a to 90c is established. For example, even if there is a target setting value (for example, 6) at the time of changing the setting, a code signal representing that stage is not generated unless the appropriate code switches 90a to 90c are combined and operated. For this reason, it cannot be changed to a desired setting value simply by operating the code switches 90a to 90c in a random manner, and it can be said that the method for changing the setting has become more sophisticated.

In this case, since it is impossible to generate a code signal when an unauthorized player attempts to change the setting by a simple contact short-circuit or the like, it is technically difficult to intervene in the setting change due to an illegal act.

(4. Explanation of additional elements)
As described above, in this embodiment, unauthorized setting changes can be strongly blocked by both the first and second methodologies. However, by adopting the following method, a more robust countermeasure against fraud can be achieved. Can be applied.

(4-1. Interlock processing)
FIG. 10 specifically shows the procedure of the interlock process executed by the CPU 52 of the main control board 50. This interlock process uses display value setting or non-display, normal setting change or random setting change depending on whether or not the front door 4 of the slot machine 1 is opened.

Similarly, when the CPU 52 starts the interlock process after the power is turned on, the CPU 52 determines whether or not the setting circuit is in the setting change mode (step S51). Proceed to the following procedure.

Next, the CPU 52 determines whether or not the front door 4 of the slot machine 1 is opened (
Step S52). In this determination, for example, a door opening switch 92 (shown in FIG. 2) attached to the slot machine 1 can be used. The CPU 52 has a door opening switch 92.
Whether or not the front door 4 is open is determined based on the detection signal from, and if the front door 4 is open (Yes), the following steps S53 and S54 are executed to complete the interlock process. On the contrary, when the front door 4 is not opened (No), another step S55, S56 is executed and the interlock process is terminated.

Thereby, for example, when the set value is regularly changed under the management of the game hall operator, it is considered that the front door 4 is normally opened using a dedicated door key. In this case, since steps S53 and S54 are executed by the CPU 52, when the mode is changed to the setting change mode, the current setting value is displayed numerically on the display unit 16 (display permitting means), and the setting value is set in the normal setting changing mode. It becomes possible to change. Here, “normal setting change” is a mode in which the set value is incremented by one step each time the reset switch 86 is operated, for example. Therefore, when the set value is regularly changed, the operation is easy, which is convenient for the game hall operator.

On the other hand, when the intervention to the setting change is performed by an illegal act, the front door 4 is in a locked state. In such a state, if the setting change mode is entered due to fraud,
Since step S55 is executed by the PU 52, the set value is not displayed numerically on the display unit 16,
Information regarding the current setting value is not specifically stolen by an unauthorized player.

Further, since step S56 is also executed, in this case, the set value can be changed only in a random setting change mode. The “random setting change” here is an irregular setting value change mode by the setting change processes (1) to (4), for example. This makes it possible to selectively complicate the setting change logic only when an illegal act is performed, so that it is possible to effectively prevent an illegal setting change.

(5. Reference to other embodiments)
The gaming machine of the present invention is not limited to one embodiment, and may be implemented in other forms. In the following, other embodiments will be described with some examples.

(1) In one embodiment, a setting circuit for setting a probability is incorporated in the main control board 50, but the setting circuit may be provided separately from the main control board 50.
(2) In one embodiment, the reset switch 86 is illustrated as a switch for performing a setting value changing operation, but a dedicated switch may be provided separately from this.

(3) In step S12 of the setting change process (1), the number of operations is determined randomly every time, but the number of operations may be a fixed value. Alternatively, it may be determined whether or not to randomly determine the number of operations before step S12, and whether or not to execute step S12 according to the result may be determined.
(4) In step S22 of the setting change process (2), the operation time is determined randomly every time, but the operation time may be constant. Alternatively, it may be determined whether or not to randomly determine the operation time before step S22, and whether or not to execute step S22 according to the result may be determined.

(5) The setting value is always forcibly changed to 1 in step S27 of the setting change process (2). However, if the current setting value is 2 or more, the following stages including the current state are included. You may make it change to.

(6) The setting change table used in the setting change process (3) is not limited to the examples of FIGS. 6 and 7 and may be other types. In the table data of FIGS. 6 and 7, the set values are 1-6.
Only one change pattern indicating the order of change is shown, but two or more change patterns can be recorded in advance in each table data.

(7) Further, in the present invention, even if the setting change due to the fraud is unsuccessful, the following effective measures can be taken if there is any fraud.

For example, when executing the setting change processing (1) to (4), a predetermined timer is set (started) from the time when the setting circuit shifts to the setting change mode, and if the setting change operation is not performed within the predetermined time, the time is over. Each setting change process may be forcibly terminated. In that case, if there is only a switch operation for changing the setting value and there is no operation for confirming the setting value, the processing content may forcibly confirm the setting when the time is over, or The processing content may be such that all the change operations are invalidated and forcibly returned to the previous set values.

When the setting change operation is not performed correctly, for example, setting change processing (1), (2)
When the switch operation number or operation time does not reach the specified number of times or specified time, or when only the pulse signal is input to the setting circuit instead of the code signal in the setting change process (4) When the setting change operation is not performed in this manner, the CPU may determine that there is a possibility of an unauthorized operation and issue an alarm. In this case, a warning sound may be emitted from the speaker attached to the gaming machine, a specific lamp may be turned on or blinking to notify the misconduct to the surroundings, or an improper act will be particularly noticed on the spot. Instead, the alarm signal may be transmitted to the hall computer through the external terminal board.

(8) The interlock process can be additionally applied to both the first and second methodologies. In FIG. 10, steps S53 and S54 and steps S55 and S56 are executed as a set, but only one of them may be executed. For example, the interlock process of FIG. 10 is divided into two flowcharts. In one flowchart, step S53 or step S55 is executed following step S52, and in the other flowchart, step S54 or step is executed following step S52. S56 may be executed.

(9) Further, for example, in the setting change processing (1) to (3), a contact signal is transmitted to the main control board 50 by an operation of pushing the reset switch 86. Instead, the setting key switch 84 is used. The number of operations and the operation time may be counted by a twisting operation.

(10) Alternatively, the CPU 52 generates random numbers from 1 to 6, for example, while the reset switch 86 continues to be operated in the first methodology, and acquires the random number when the operation of the reset switch 86 is interrupted. The setting value may be changed from the random value at that time.

(11) As already described, a gaming machine having a specification that allows setting and changing the lottery probability is not limited to a slot machine, but may be a CR machine type pachinko machine.
(12) In addition, the configuration of the slot machine described in the embodiment is merely a preferable example, and it is needless to say that these can be changed as appropriate.

It is a front view of a slot machine. It is the figure which showed schematically the structure of the slot machine containing control equipment. It is a flowchart of a setting change process (1). It is a flowchart of a setting change process (2). It is a flowchart of a setting change process (3). It is an example of a setting change table. It is an example of the setting change table different from FIG. 3 is a configuration example of a power supply box different from FIG. 2. It is a flowchart of a setting change process (4). It is a flowchart of an interlock process.

Explanation of symbols

1 Slot machine 2 Case (the machine body)
4 Front door (door member)
16 Display section (display means)
50 Main control board 82 Power switch 84 Setting key switch 86 Reset switch 90 Code switch 92 Door opening switch (opening / closing state detecting means)

Claims (3)

A gaming machine that performs a lottery in accordance with a game operation by a player and gives a bonus to the player when the lottery is won,
The winning probability of the lottery takes one of three or more predetermined values,
Each of the three or more predetermined values is associated with a different set value that represents the stage of the winning probability according to the size of the predetermined value.
A switch provided inside the gaming machine body,
A set value changing means for changing the set value of the winning probability of the lottery according to the operation of the switch ;
Determining means for randomly determining an operation time of the switch necessary for changing the setting value from the current setting value to the setting value of the next stage;
The set value changing means includes
A gaming machine , wherein when the switch is operated for an operation time determined by the determining means, the setting value is changed from a current setting value to a setting value of a next stage . The set value changing means includes
2. The gaming machine according to claim 1, wherein when the switch is not operated for an operation time determined by the determination unit, the current setting value is changed to a setting value at a stage below the current state. The determining means includes
The operation of the switch necessary for changing the setting value from the current setting value to the setting value of the next stage according to the result is determined by randomly determining whether the operation time of the switch is determined at random. Decide whether to determine the time randomly
The gaming machine according to claim 1.

Images