JP4476449B2 - Game machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a gaming machine configured to perform a probability variation lottery using a probability variation design.
[0002]
[Prior art]
A conventional pachinko machine of this type is disclosed in, for example, Japanese Patent Laid-Open No. 5-177041. According to this gazette, a probability variation function other than the big hit lottery is performed using the probability variation determination design, and the probability variation function is activated in accordance with the lottery result. Therefore, in this gaming machine, since the probability variation lottery is performed in addition to the big hit lottery, the player can enjoy the game with a sense of expectation.
[Problems to be solved by the invention]
However, in such a conventional gaming machine, there is no room for the player to perform such processing by automatic control on the gaming machine side in the processing related to the variation display and stop display of the probability variation determination symbol. It was. For this reason, the player is forced to play the game in a passive state, and the feeling of participation in the game has become sparse.
[0003]
The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a gaming machine that increases the sense of participation in gaming of this type of gaming machine .
[0006]
[Means for Solving the Problems]
To achieve the above object, the present onset Ming, after a jackpot state, change the left, middle, and each of the probability change determining symbols of three rows of the right for use in determining whether or not cause probability change to start displaying, in the gaming machine that the respective probability change determining symbols of said three rows being fluctuation display is stopped and displayed is the probability change state if a predetermined one, and the jackpot status When fluctuation winning device by became begins to allow winning game balls, the three rows of the probability change determining symbols respectively to start variable display, after the start of variable display of probability change determining symbols of said three rows , one th game ball prize Then left probability change pattern to the variation winning device is stopped and displayed, the two eyes of the game balls to the variation winning device to winning a central probability change symbol is stopped and displayed, the The third game to the variable prize device There example Bei control means for stopping displaying the right probability change pattern when winning, the control means, the winning of the open time of the variation winning device, wherein is possible to stop displaying all probability change determining symbols If the number of game balls is less than the number of winnings that can be made, the probability variation determination symbols that are not stopped when the variable winning device is closed are stopped and displayed .
[0007]
Accordingly, the control means sequentially stops and displays each of the plurality of probability variation determination symbols displayed in a variable manner at different winning timings of the game ball to the variable winning device. Each of the plurality of probability variation determination symbols can be stopped and displayed sequentially at different winning timings, and the player can have a stronger sense of participating in the game.
[0009]
Such control can be realized by recording the control procedure on a computer-readable recording medium and reading and executing the display control procedure recorded on the recording medium by the computer. Such recording media include semiconductor recording media such as ROM and semiconductor IC, optical recording media such as DVDROM and CDROM, magnetic recording media such as flexible disks, magneto-optical recording media such as MO, and computer-readable digital information. Any recording medium that can be stored is included.
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the configuration and operation of a normal pachinko machine will be described, and then the features of the present invention will be described to facilitate understanding of the present invention. FIG. 1 is a schematic explanatory diagram of a gaming board 100 constituting a part of a gaming machine (pachinko machine) according to an embodiment of the present invention.
[0010]
The game board 100 is formed with a circular game area 103 surrounded by a substantially circular outer guide rail 101 and a substantially circular inner guide rail 102 having a smaller radius than the outer guide rail 101, and is illustrated by a player's operation. A game is played when a game ball launched from a launching device that does not rolls in the game area 103. The game area 103 is provided with a large number of game nails for contacting the game balls and rolling them in a plurality of directions, but the game nails are not shown for the sake of simplicity. Yes.
[0011]
At a substantially central position of the game board 100, there is a special design that includes a display area that can independently display and change the identification information composed of symbols of numbers and characters in an array pattern such as a horizontal row or a vertical row. A display device 104 is provided. A normal symbol display device 107 is disposed directly above the special symbol display device 104. A special symbol starting port 105 is disposed immediately below the special symbol display device 104, and normal symbol operation gates 106 and 106 are disposed on both sides of the special symbol display device 104.
[0012]
A variable winning device 108 is disposed below the special symbol starting port 105. In the variable winning device 108, a wide movable member 116 rotates to the front side of the drawing during the big hit period, and the movable member 116 is A large winning opening 109 in which a game ball can be won before turning in a direction to return to the original direction, and a movable member 117 having a narrow width during a small hit, rotate to the front side of the drawing, and this movable member 117 is the original. And a normal electric accessory 110 in which the game ball is in a state in which the game ball can be won before it is rotated in the direction to return to.
[0013]
In the game area 103, four windmills 111, two windmills 112 with lamps for changing the rolling direction of the game ball together with a game nail (not shown), and a lamp display that is lighted and controlled according to the game state of the game machine. Devices 114 and 115, an out port 113 and the like for discharging a non-winning game ball to the back side of the game board 100 are provided.
[0014]
Then, a game ball is won at the special symbol starting port 105 and a random number lottery is generated by a loop counter for generating a big hit random number. When the random number selected is a big hit value, After the identification information is displayed in a variable display state, a predetermined pattern (for example, “7, 7, 7”) is displayed by the special symbol display device 104, and the special winning opening 109 is controlled to open / close with a predetermined open / close pattern. The winning device 108 is changed from a disadvantageous state to a player to an advantageous state.
[0015]
In addition, when the normal symbol operation gate 106 detects the passing of the game ball, a random number lottery is generated by a loop counter for generating a small hit random number, and when the random number selected is a small hit value, If the display of the normal symbol display device 107 is a predetermined one (for example, “7” or “3”), the normal electric accessory 110 is released (small hit state), and if a game ball is won during this open period, a big hit A lottery will be held.
[0016]
If the result of the lottery is a big win, the identification information is variably displayed in the display area in the same manner as described above, and the display with a predetermined pattern is performed by the special symbol display device 104. The opening / closing control is performed by the pattern, and the variable winning device 108 is changed from a disadvantageous state to a player's advantageous state. Note that game balls that are not won are discharged through the out port 113. In addition, this gaming machine has a probability variation function that improves the probability of the next big hit when the big hit is made at a specific outcome.
[0017]
As mentioned above, although each apparatus arrange | positioned at the game board 100 was demonstrated, the main thing of these apparatuses is operation-controlled by the microcomputer system, and these are demonstrated with reference to a control block diagram. FIG. 2 is a control block diagram of main devices arranged in the game board 100. Note that control units such as a launching device and a prize ball discharging device (not shown) are not shown.
[0018]
The main control unit 200 includes a microprocessor with a built-in CPU. A table area 215 to be described later is formed, a ROM 201 for storing a control program and control data describing a series of control procedures, and a counter area to be described later. 216 and a RAM 202 in which various work areas are formed are provided as an integrated one-chip microcomputer. The counter area 216 can also be configured by using a register group (not shown) inside the CPU instead of the RAM 202.
[0019]
The main control unit 200 includes a special symbol start switch 204 and a normal symbol operation gate 106 which are arranged inside the special symbol start port 105 and detect a winning of the game ball to the special symbol start port 105 through the input port 203. A normal symbol operation switch 205 that is disposed inside and detects the passage of the game ball through the gate, a large winning port switch 206 that is disposed inside the large winning port 109 and detects the winning of the gaming ball to the large winning port 109, and a normal electric motor An ordinary electric accessory switch 207 that is disposed inside the accessory 110 and detects a winning of a game ball to the ordinary electric accessory 110 is connected, and the main control unit 200 can receive each detection signal.
[0020]
In addition, the main control unit 200 can display and stop the identification information composed of symbols of numbers and characters via the output port 208, and can display a special symbol composed of a display device such as an LCD. Display device 104, for example, a normal symbol display device 107 realized by a 7-segment display device, and a large winning opening operating solenoid for controlling the opening of the large winning port 109 by rotating the wide movable member 116 of the large winning port 109 209, an ordinary electric accessory actuating solenoid 210 for controlling the opening of the ordinary electric accessory 110 by controlling the rotation of the movable member 117 of the ordinary electric accessory 110, and a lamp display device 114 (115) for controlling lighting of the lamp and LED. And a speaker 211 for outputting sound effects are connected, and the main control unit 200 can transmit control signals for controlling these devices. Going on.
[0021]
The main control unit 200 is connected to a power supply circuit 212 for supplying power and a reset circuit 213 that outputs a reset signal every predetermined time. Further, the main control unit 200 is connected to the reset circuit 213. A pulse signal generated by the periodic timer counter is input, and a monitor signal for monitoring a current supply state from the power supply circuit 212 is input.
[0022]
Next, main random number generation counters used by the gaming machine will be described with reference to FIG. Each random number counts up one by one in a predetermined cycle (for example, 4 msec) until it reaches the upper limit value starting from the value “0”, and when the count value exceeds the upper limit value, the initial value “ The counters are generated by using so-called infinite loop counters that are cleared at 0 and the count operation is repeated. These infinite loop counters are formed in the RAM 202, and the main control unit 200 controls the count operation.
[0023]
As the main count, as shown in FIG. 4, a big hit state determination random number counter (count value: 0 to 239) 401, a reach selection counter (count value: 0 to 99) 402, a big hit state symbol selection random number counter (Count value: 0 to 8) 403, Outgoing left symbol selection random number counter (Counter value: 0 to 8) 404, Outgoing symbol selection random number counter (Counter value: 0 to 8) 405, and Outgoing right symbol selection There is a random number counter (counter value: 0 to 8) 406 for use.
[0024]
The big hit determination counter 401 is a counter used for determining whether or not to cause a big hit state. In the normal gaming state (in the normal probability state), the special value state is generated with a counter value of “7”, and in other cases, the special state is not generated. In the high probability state, the special prize state is generated with the counter values “7”, “39”, and “139”, and in other cases, the special prize state is not generated. Thus, if the total count value is “240”, a special prize state is generated with a probability of 1/240 in the normal gaming state, and a special prize state with a probability of 1/80 in the high probability state. Can be born.
[0025]
The reach selection random number counter 402 is a counter used for selecting a variation pattern of a special symbol. When the counter value is selected, a symbol variation pattern corresponding to the selected counter value is selected. The jackpot symbol selection random number counter 403 is used to select a special symbol used to stop and display, for example, three identical symbols in a horizontal row in the display area of the special symbol display device 104 when a big hit state occurs. When the counter value is selected by lot, each display unit of the special symbol display device 104 is displayed in a symbol pattern corresponding to the selected counter value.
[0026]
When the counter value is “0”, “1”, “2”, “3”, “4”, “5”, “6”, “7”, “8”, “1”, “2”, respectively. , “3”, “4”, “5”, “6”, “7”, “8”, “9” are selected and displayed. The off-left symbol selection random number counter 404, the off-center symbol selection random number counter 405, and the off-right symbol selection random number counter 406 are stopped and displayed in the display area of the special symbol display device 104 when the big hit state does not occur. These are counters used to select special symbols. When these counter values are selected, the left, middle and right symbols corresponding to the selected counter values are displayed on the special symbol display device 104. There are other counters related to normal symbol display and the like, and these are stored in the counter area 216.
[0027]
Next, the control operation performed by the main control unit 200 will be described with reference to the flowchart of FIG. FIG. 3 is a flowchart for explaining the gaming operation of the gaming machine. 3 is executed by the main control unit 200, but is executed from step S100, which is the first step, triggered by a reset signal supplied from the reset circuit 213 every predetermined time (for example, 4 msec).
[0028]
First, when the power supply circuit 212 is activated by a power switch (not shown), the main control unit 200 is activated, and it is determined whether or not the first processing is executed after the power is turned on ( Step S100). In the case of the first process after the power is turned on (Yes), the process proceeds to step S102, and in other cases (No), the process proceeds to step S108.
[0029]
In step S102, the RAM 202 is cleared, and a predetermined area including at least the counter area 216 is cleared. Next, in step S104, data for performing initial control processing is set in the predetermined area of the RAM 202, and step S106 is performed. Migrate to
[0030]
On the other hand, in step S108, the counter values of the various random number counters 401 to 407 described above are incremented by 1, and the counter values are updated. Next, in step S110, the detection signals output by the special symbol start switch 204, the normal symbol operation switch 205, the big prize opening switch 206, and the normal electric accessory switch 207 are input to the register in itself (not shown) via the input port 203. In order to control the operations of the port input processing for reading and storing, the special symbol display device 104, the normal symbol display device 107, the special prize opening operation solenoid 209, the normal electric accessory operating solenoid 210, the lamp display device 114 (115), and the speaker 211. A port output process for outputting control data stored in an output buffer (not shown) of the RAM 202 to a corresponding device via an output port 208 in a control process at each step to be described later. The output buffer that stored the output control data The output buffer clear process for clearing, and executes the "common processing 1" which includes various timers process of updating the timer value of the various timer (not shown) used in the game machine operation control.
[0031]
Next, in step S112, the switches 204, 205, 206, and 207 are checked for disconnection or short circuit. If it is determined that these faults have occurred (Yes), the process proceeds to step S116. Then, the error flag is stored in a predetermined area of the RAM 202 and error processing for performing control necessary for notifying that there is an abnormal state is executed, and the process proceeds to step S126. On the other hand, these failures occur. If it is determined that it is not (No), the process proceeds to step S118 (step S114).
[0032]
Next, in step S118, when the special symbol start switch 204, the normal symbol operation switch 205, the big prize opening switch 206, and the ordinary electric accessory switch 207 output detection signals for detecting a winning ball, the update is made in step S108. The random numbers corresponding to the output detection signals are drawn out from the various random number counters, stored in a predetermined area of the RAM 202, and hit determination and symbol determination are performed with reference to the stored random number values.
[0033]
Specifically, when the special symbol start switch 204 or the normal symbol electric accessory switch 207 outputs a winning ball detection signal, the information is extracted by referring to the information stored in the table area 215 described above. Stored in the table area 215, whether or not the random number value (the special prize state random number counter 701) causes a big hit, the big hit state symbol selection random number counter 403, the off symbol selection random number counters 404 to 406, and the table area 215. The special information to be displayed is determined with reference to the stored information, and necessary control data is stored in a predetermined position of the output buffer.
[0034]
When the normal symbol operation switch 205 outputs a detection signal, a small hit state is generated by referring to a random number generated by a random number counter (not shown) and a small hit value stored in the ROM 201 in advance. In addition to deciding whether or not to perform, a normal symbol to be displayed is determined and necessary control data is stored in a predetermined area of the output buffer.
[0035]
Next, in step S120, the special symbol display device 104 and the normal symbol display device 107 are subjected to symbol display control such as symbol variation and stop, and the control or jackpot period for displaying the symbol selected in step S118. Control data necessary for performing control for displaying an animation image therein is stored in a predetermined area of the output buffer. Since this specific control is the main part of the present invention, it will be described later.
[0036]
Next, in step S122, control data for controlling opening / closing of the big winning opening 109 and the ordinary electric accessory 110 in a predetermined opening pattern during the big hit state or the small hit state period is stored in a predetermined area of the output buffer. Various control data stored in the output buffer as described above is transmitted to the corresponding device by the port output processing in step S110, and the device that has received the control data performs operation control based on the received control data.
[0037]
Next, the process proceeds to step S126, and external information output set processing for storing various game data in a predetermined area of the output buffer in a gaming machine management device (not shown), and prize ball command data is output to a prize ball discharging device (not shown). Prize ball control processing, lamp display control processing for storing control data necessary for lighting control of the lamp device 114 (115) in a predetermined area of the output buffer, control data necessary for driving control of the speaker 211, output buffer The “common process 2” including the sound effect control process stored in the predetermined area is executed. In step S106, a reset standby process is executed until a reset signal is input from the reset circuit 213. If a reset signal is input, the process proceeds to step S100 to continue operation control of the gaming machine. The reset waiting process includes updating the counter value for generating random numbers of various random numbers described above. As described above, a series of operation control of the pachinko machine is performed.
[0038]
(Main part of the present invention)
Next, the main part of the present invention will be described. FIG. 5 is a block configuration diagram of the special symbol display device 104 according to the embodiment of the present invention. The special symbol display device 104 includes a CPU 500 that performs display control, a RAM 520 that functions as a work area, a ROM 510 that stores programs for operating the CPU 500, symbol reel data, and the like, and an LCD panel 530.
[0039]
FIG. 7 shows a probability variation determination symbol reel 700 which is stored in the ROM 510 and is reel data of a probability variation determination symbol used for determining whether or not a probability variation occurs after the big hit state is reached. This is a probability variation output 710 indicating that the probability variation state occurs. The main control unit 200 draws the output of the probability variation determination symbol using a counter (not shown), and stops the probability variation output 710 when it is selected by lottery to enter the probability variation state.
[0040]
In this embodiment, a method for displaying the probability variation determination symbols using the display area of the special symbol display device 104 will be described. However, the display of the battle between the characters is performed, and the special symbol display device. Apart from 104, the identification information for determining the probability variation is displayed by using the lighting position and lighting pattern of the LEDs arranged in the predetermined arrangement pattern, or using the display number of the 7-segment display. May be displayed.
[0041]
(First operation example)
Next, a first operation example will be described with reference to FIG. When a special symbol big hit occurs, the main control unit 200 drives and controls the big winning opening actuating solenoid 209 to rotate the wide movable member 116 toward the front side of the drawing so that a game ball can be won (FIG. 6). (1)). The main control unit 200 instructs the CPU 500 to execute display control at this time.
[0042]
The CPU 500 uses the probability variation determination symbol reel 700 in the display area of the special symbol display device 104 at the start of opening the first big winning opening 109 immediately after the big hit, and sequentially stores the symbol data of this reel in the display area. To scroll and display the variation display of the probability variation determination symbol ((1) in FIG. 6).
[0043]
When the main control unit 200 detects that a predetermined number, for example, 10 game balls have been won in the big prize opening 109, the main control part 200 drives and controls the big prize opening operation solenoid 209 so that the wide movable member 116 is moved to the back side of the drawing. The game ball is turned to make it impossible to win a prize, and a lottery result of a probability variation determination symbol by a counter (not shown) is sent to the CPU 500. The CPU 500 stops and displays the probability variation determination symbol being varied and displayed when the display control instruction is received ((2) in FIG. 6). This outcome may be determined at the time of special symbol lottery, or may be drawn when a predetermined number of game balls are won in the big winning opening 109.
[0044]
Therefore, according to this first operation example, the main control unit 200 starts the variation display of the probability variation determination symbol when the big winning opening 109 starts to be able to win the game ball due to the big hit state. Furthermore, the probability variation determination symbol is stopped and displayed when ten game balls are won in the special winning opening 109. Accordingly, since the stop display of the probability variation determination symbol is performed in response to the winning of the game ball hit by the player in the variable winning device, it is possible to feel that the player is participating in the game.
[0045]
If a predetermined number of game balls have not been won within the opening time of the big winning opening 109, the CPU 500 forcibly stops and displays the probability variation determination symbol when the big winning opening 109 is closed. By doing so, it is possible to stop and display the probability variation determination symbol without any trouble even if a predetermined number of game balls are not won within the opening time of the big winning opening.
[0046]
Further, in this operation example, the number of winning prizes to the big winning opening 109 for stopping and displaying the probability variation determination symbol is 10 (the same number as the closing condition of the big winning opening 109). The number is not limited to one, and may be any number from 1 to 10.
[0047]
(Second operation example)
Next, a second operation example will be described with reference to FIG. In this operation example 2, it is assumed that the gaming machine is configured to display probability variation determination symbols in three columns of left, middle, and right. When a special symbol big hit occurs, the main control unit 200 drives and controls the big winning opening actuating solenoid 209 to rotate the wide movable member 116 toward the front side of the drawing so that a game ball can be won (FIG. 8). (1)). The main control unit 200 instructs the CPU 500 to execute display control at this time.
[0048]
The CPU 500 uses the probability variation determination symbol reel 700 in the display area of the special symbol display device 104 at the start of opening the first big winning opening 109 immediately after the big hit, and sequentially stores the symbol data of this reel in the display area. Then, scrolling in the three columns of left, middle, and right starts to display the fluctuation display of the probability fluctuation determination symbol ((1) in FIG. 8).
[0049]
When the main control unit 200 detects that the first game ball has won the winning prize opening 109, the main control unit 200 sends a lottery result of the probability variation determination symbol by a counter (not shown) to the CPU 500, and the CPU 500 performs the display control. When the instruction is received, the left symbol for probability variation determination is stopped and displayed at the lottery outcome ((2) in FIG. 8). Next, when the main control unit 200 detects that the second game ball has won a prize winning opening 109, the main control unit 200 sends a lottery result of a probability variation determination symbol by a counter (not shown) to the CPU 500, and the CPU 500 performs the display control. In response to the reception of the instruction, the middle symbol for probability variation determination is stopped and displayed at the lottery result ((3) in FIG. 8).
[0050]
Finally, when the main control unit 200 detects that the third game ball has won the big winning opening 109, it sends a lottery result of a probability variation determination symbol by a counter (not shown) to the CPU 500. The CPU 500 causes the right symbol for probability variation determination to be stopped and displayed at the lottery outcome when the display control instruction is received ((4) in FIG. 8).
[0051]
Also in this example of operation, the CPU 500 has a number of winnings within the opening time of the big winning opening 109 that is less than the number of winnings that can stop and display all of the left, middle and right probability variation determination symbols. In the case of a game ball winning, if the symbol for determining probability variation that is not stopped when the large winning opening 109 is closed is displayed in a stopped state, all probability variation determination within the opening time of the large winning item 09 is performed. Even if the number of winnings is less than the number of symbols to be displayed in a stopped state, the probability variation determination symbol that is not displayed in a stopped state can be stopped and displayed without any trouble.
[0052]
Therefore, according to the second operation example, the main control unit 200 sequentially stops each of the plurality of probability variation determination symbols displayed in a variable manner at different winning timings of the game balls to the big winning opening 109. Since it is displayed, each of the plurality of probability variation determination symbols can be stopped and displayed sequentially at different winning timings of the game ball to the big winning opening 109, and the player feels that he is participating in the game. You can have even stronger. Further, instead of the probability variation determination symbol, a symbol for determining whether or not the variation time of the special symbol or the normal symbol is shorter than usual may be displayed.
[0053]
Although the embodiments of the present invention have been described above, various modifications and changes can be made to the above-described embodiments without departing from the spirit of the present invention. For example, the probability variation determining symbols are set to two or four or more, the speaker 211 and the lamp display device 114 (115) are effect-controlled with a specific effect pattern in response to the stoppage of the probability variation determining symbols, etc. Is mentioned. Further, instead of the probability variation determination symbol, a symbol for determining whether or not the variation time of the special symbol / ordinary symbol is shortened compared to the normal time may be displayed.
【The invention's effect】
As described above, according to the present invention, since a game ball hit by a player is displayed in a winning device, a symbol for determining probability variation is stopped, etc., so that the player participates in the game. The effect that you can feel that you are.
[Brief description of the drawings]
FIG. 1 is a schematic explanatory view of the front of a gaming machine.
FIG. 2 is a control block diagram of the gaming machine.
FIG. 3 is a flowchart for explaining operation control of the gaming machine.
FIG. 4 is an explanatory diagram of various counters.
FIG. 5 is a block configuration diagram of a special symbol display device 104;
FIG. 6 is a timing chart for explaining a first operation example;
7 is an explanatory diagram of a probability variation determination symbol reel 700. FIG.
FIG. 8 is a timing chart for explaining a second operation example;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Game board 101 Outer guide rail 102 Inner guide rail 103 Game area 104 Special symbol display device 105 Special symbol start port 106 Normal symbol operation gate 107 Normal symbol display device 108 Variable winning device 109 Large winning port 110 Ordinary electric accessory 111 Windmill 112 Windmill 113 with lamp Out port 114, 115 Lamp display device 116 Movable member 117 Movable member 200 Main control unit 201 ROM
202 RAM
203 Input port 204 Special symbol start switch 205 Normal symbol operation switch 206 Grand prize opening switch 207 Normal electric accessory switch 208 Output port 209 Grand prize opening operation solenoid 210 Normal electric accessory activation solenoid 211 Speaker 212 Power supply circuit 213 Reset circuit 401 Special prize State determination random number counter 402 Reach selection random number counter 403 Special prize state symbol selection random number counter 404 Outgoing left symbol selection counter 405 Outgoing symbol selection counter 406 Outage right symbol selection counter 500 CPU
510 ROM
520 RAM
530 LCD panel 700 Symbol reel for accuracy determination

Claims (1)

After a big-hit state, it left for use in determining whether or not cause probability change, in, to start variable display to each of the right three columns of probability change determining symbols, wherein are fluctuations display 3 in a gaming machine that the respective probability change determination symbol column stopped and displayed is the probability change state if a predetermined one,
Wherein the variation winning device by which a jackpot state begins to allow winning game balls, the third column to start variable display to each of the probability change determining symbols of said three rows variation of probability change determining symbols of after starting the display, the variation winning device 1 -th gaming ball prize Then left probability change symbol is stopped and displayed to, the two eyes of the game balls to winning to the variation winning device stops central probability change symbol is displayed, Bei give a control means for stopping displaying the right probability change pattern when three th game balls to the variation winning device is winning,
Before SL control unit, when the winning in the opening time of the variation winning device, wherein a prize of all the number of game balls less than the winning number of the probability change determining symbols can be stopped displayed the gaming machine according to claim and Turkey the probability change determining symbols that are not stopped and displayed during closing of the fluctuation winning device is stopped and displayed.

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