JP2002000835A - Pachinko game machine and recording medium having game program recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a Pachinko game machine and a recording medium having a game program recorded thereon, in which fun of a game can be enhanced by changing a drawing probability for shifting to a special game for every entering ball into a starting-winning hole. SOLUTION: This Pachinko game machine is provided with a special pattern display device 5 for variably displaying a special pattern formed of plural display forms, the start-winning port 12 for starting the fluctuation display of the special pattern in the special pattern display device 5 on condition that a game ball enters and a special pattern decision means for performing drawing using a random number based on a prescribed winning probability and deciding the stop display form of patterns in the special pattern display device 5. In the case that the stop display form of the patterns in the special pattern display device 5 constitutes a prescribed prize form, the special game advantageous to a player compared to a normal game is performed. For every game ball which enters the start-winning port 12, the winning probability in the special pattern decision means can be changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bullet for allowing a player to perform a special game which is more advantageous than a normal game when a special symbol display mode in a special symbol display device constitutes a predetermined prize mode. The present invention relates to a ball game machine and a recording medium on which a game program is recorded.

[0002]

2. Description of the Related Art A pachinko machine has been conventionally known as this kind of ball-and-ball game machine. Conventional pachinko machines are provided with a special symbol display device for displaying a plurality of special symbols in a variation in a gaming section provided on the surface of a game board, and a starting winning port provided separately from a general winning port. On the condition that the game ball wins, the special symbol display device starts the display of the change of the special symbol. Then, a lottery using random numbers is performed to determine a special symbol stop display mode in the special symbol display device, and based on the determination, the special symbol change display is stopped.

Here, the special symbol display device is configured to display the special symbol in a predetermined prize mode (for example, "7").
When “7” and “7”) are configured, the player is caused to perform a special game that is more advantageous than the normal game. In this special game, for example, a large winning opening provided separately from a general winning opening is opened for a predetermined time or until a predetermined number of playing balls are won, so that many game balls are won, and many Prize balls can be obtained. In such a pachinko machine, after a special game is finished, a lottery probability for shifting to the special game is increased under a predetermined condition so that the special game is continuously generated.

[0004]

However, in the above-mentioned conventional pachinko machine, if the probability of shifting to the special game is not increased, not during the so-called probability fluctuation,
The possibility that the game can be shifted to the special game is, for example, about 1/310. If the game cannot be shifted to the special game forever, there is a problem that the player gets tired of the game. In addition, since the lottery is performed with the same probability until the end of one cycle of the special game, the expectation for the occurrence of the special game does not change, and the fun of the game cannot be sufficiently enjoyed. There was a problem.

[0005] The present invention has been proposed in view of such circumstances, and by making it possible to change the lottery probability for shifting to the special game for each winning ball to the starting winning opening, the fun of the game is improved. It is an object of the present invention to provide a ball and ball game machine that can be increased. Another object of the present invention is to provide a recording medium that enables a game program capable of playing the same game as the above-described gaming machine to be used as, for example, a game program for a home-use gaming machine.

[0006]

A ball game machine according to the present invention has the following features to achieve the above-mentioned object.

That is, the ball game machine according to the present invention has a special symbol display device for displaying a special symbol having a plurality of display modes in a variable manner, and the special symbol display device provided that a game ball is won. A special winning symbol for determining the special symbol display on the special symbol display device by performing a random determination based on a predetermined winning probability and a winning prize port for starting the variable display of the special symbol in the special symbol display device. Means and a ball game machine that allows a player to perform a special game advantageous in comparison with a normal game, when the symbol stop display mode in the special symbol display device constitutes a predetermined prize mode. The winning probability in the special symbol determination means can be changed for each game ball that has won the mouth.

[0008] Further, a plurality of passing portions for selectively passing game balls that have won a prize into the starting winning opening can be provided, and a winning probability in the special symbol determination means can be set for each passing portion. is there. Further, it is possible to perform a lottery using a random number for each game ball that has won the starting winning opening, and set a winning probability in the special symbol determination means. In addition, the winning probability in the special symbol determination means,
It can be increased or decreased from the reference value for each game ball that has won the starting winning opening.

The above-described ball game machine according to the present invention can further have the following features. That is,
It is possible to provide a prize display means for displaying that a game ball has won at the starting port.

[0010] In addition, the number of game balls that have won the starting port can be stored up to a predetermined number, and the special symbol display device starts changing display of the special symbol based on the stored predetermined number of game balls, It is possible to provide a winning probability display means for displaying a winning probability in the special symbol determination means for each of the predetermined number of game balls.

In addition, it is possible to provide a changing special symbol winning probability display means for displaying the winning probability in the special symbol determining means with respect to the special symbol currently being displayed in the special symbol display device.

[0012] Further, it is possible to provide an effect means for performing different effects based on the difference in the winning probability in the special symbol determination means.

The recording medium on which the game program according to the present invention is recorded has a special symbol display device for variably displaying a special symbol composed of a plurality of display modes, and the special symbol display device provided that a game ball has won. A special winning symbol for determining a symbol stop display mode on the special symbol display device by performing a random winning based on a winning winning opening for starting a variable display of the special symbol on the device and a random number based on a predetermined winning probability. A recording medium in which a determining means and a game program for causing a player to perform a special game which is advantageous compared to a normal game when the symbol stop display mode in the special symbol display device constitutes a predetermined prize mode At
A feature is added to the special symbol determination means for enabling a change in the winning probability for each game ball that has won the start winning opening.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a ball game machine according to the present invention will be described in detail with reference to specific examples shown in the drawings. In the following embodiments, a pachinko machine will be described as an example of a typical ball game machine.

<Patent Board of Pachinko Machine: First Embodiment> FIG.
1 is a front view of a game board 1 used for a pachinko machine according to Embodiment 1 of the present invention. The pachinko machine according to the first embodiment of the present invention includes a game board 1 for playing a game by firing a game ball with a hit ball firing device (not shown). As shown in FIG. 1, the surface of the game board 1 is provided with a substantially circular game part 3 surrounded by a pair of guide rails 2.
Inside, a plurality of obstacle members 4 such as nails and windmills are arranged, a special symbol display device 5 for variably displaying a plurality of special symbols, and a normal symbol for variably displaying a plurality of ordinary symbols. A display device 6, a plurality of winning openings, an out opening 7 for discharging game balls that did not win any of the winning openings from the inside of the gaming section 3, and a decoration device 8 including a plurality of lamps and LEDs. Have.

<Winning Port> The winning port is divided into a plurality of types according to its function, and a general winning port 9 for discharging a predetermined number of prize balls on condition that a game ball has won.
And, on condition that the game ball has passed, a normal symbol starting port 10 for starting the variable display of the normal symbol on the normal symbol display device 6, and a state in which the game ball can be easily received,
It has a fluctuating member (hereinafter, usually referred to as an electric accessory 11) that can be switched between a state in which it is difficult to accept a game ball, and a special symbol display device 5 on a special symbol display device 5 on condition that the game ball wins. Winning opening 12 for starting
And a state in which game balls are easily accepted, and a state in which game balls are not easily accepted. When the symbol stop display mode on the special symbol display device 5 constitutes a predetermined prize mode, a predetermined prize mode is set. A large winning opening 13 that can be switched to a state in which game balls can be easily received for a predetermined time and a predetermined number of times.

<Normal symbol starting port> The above normal symbol starting port 1
0 is provided on the left and right of the special symbol display device 5, and the variation of the ordinary symbol on the ordinary symbol display device 6 starts when the game ball passes. Up to four passing balls of the ordinary symbol starting port 10 can be stored, and based on the winning memory, the symbol variation display on the ordinary symbol display device 6 is performed. On the upper part of the special symbol display device 5, four ordinary symbol storage LEDs 14 for displaying the number of passing symbols of the ordinary symbol starting port 10 are provided. The number of lit ordinary symbol storage LEDs 14 can indicate the number of passing symbols stored in the ordinary symbol starting port 10.

<Start Winning Port> At the upper part of the starting winning port 12, there is provided a so-called tulip-shaped ordinary electric accessory 11 which can be switched between a state where game balls can be easily received and a state where game balls cannot be received. Have been. The ordinary electric accessory 11 is in a state in which it is difficult to accept a game ball in a normal state, and accepts a game ball for a predetermined time (for example, 3 seconds) when a “hit” occurs in the ordinary symbol display device 6. It can be switched to an easy state.

Further, up to four winning balls can be stored in the starting winning opening 12, and based on this winning memory,
The special symbol display device 5 performs a variable display of the symbol. Further, on the upper part of the special symbol display device 5, four special symbol memory LEDs 15 for displaying the number of winning symbols stored in the starting winning port 12 are provided. This special design memory L
The number of winnings stored in the start winning opening 12 can be displayed by the lighting number of the ED 15.

When a game ball wins in the starting winning opening 12, a decorative lamp 16 to be described later is turned on or blinks, a sound effect is generated from a speaker which is an audio output device 22, and a special symbol display device 5 is provided. By performing an effect by image display or the like by the liquid crystal display device constituting the above, the fun of the game can be enhanced. In this case, the lottery probability for shifting to the special game set for each winning ball (hereinafter referred to as
The production method may be changed based on the lottery probability). For example, the special symbol storage LED 15 is configured by an LED capable of emitting two colors, and the emission color of the special symbol storage LED 15 is changed based on the lottery probability set for each winning ball, so that the special symbol memory LED 15 is set for each winning ball. Can be displayed.

Further, the special symbol storage LED 15 corresponding to the winning ball whose lottery probability is set to a high probability blinks,
The special symbol storage LED 15 corresponding to the winning ball whose lottery probability is set to a low probability is simply lit,
The lottery probability set for each winning ball can be displayed. In addition, every time the reserved prize ball memory is consumed, the emission color or blinking position of the special symbol storage LED 15 is sequentially moved to make it possible to recognize which of the prize ball memories is the display of the lottery probability. be able to.

In the above example, the special symbol storage LED 1
5, the decoration lamp 16, the audio output device 22, the special symbol display device 5, and the like function as a winning probability display means and an effect means.

<Special Symbol Display Device> The special symbol display device 5 is composed of a liquid crystal display device provided substantially at the center of the game section 3, and displays a plurality of special symbols represented by images while changing the game state. By performing an animation display corresponding to, a game effect can be performed. The special symbols displayed on the special symbol display device 5 are, for example, “0”, “1”, “2”,.
It consists of numbers such as "9", and when the combination of numbers stopped and displayed is "7""7""7","bighit"
As a result, it is possible to perform a special game that is more advantageous to the player than the general game.

The special game is, for example, a special winning opening 13
Is switched to a state in which game balls are easily accepted for a predetermined time and a predetermined number of times, so that a larger number of game balls than the general game are won, so that a larger number of prize balls can be obtained.

Further, when the special symbol display device 5 is performing the variable display of the special symbol, the decorative lamp 16 is turned on or blinked based on the lottery probability with respect to the variable display, and the speaker as the audio output device 22 is used. By generating the sound effect and displaying the image by the liquid crystal display device constituting the special symbol display device 5, it is possible to enhance the effect of the game and increase the fun of the game.

In the example described above, the special symbol storage LED 1
The decoration lamp 16, the voice output device 22, the special symbol display device 5, and the like function as special symbol winning probability display means during the change.

<Normal Symbol Display> The ordinary symbol display 6 comprises a 7-segment display provided above the special symbol display 5. The ordinary symbols displayed on the ordinary symbol display device 6 are, for example, “0”, “1”, “2”,.
It consists of numbers such as "7", "8", "9", etc., and the normal symbol is displayed in a variable manner. 1
The normal electric accessory 11 provided in 2 is switched to a state where game balls can be easily received for a predetermined time, so that the start winning port 12 can easily receive game balls.

<Gaming Board of Pachinko Machine: Embodiment 2> FIG.
1 is a front view of a game board 1 used for a pachinko machine according to Embodiment 2 of the present invention. As shown in FIG. 2, the pachinko machine according to the second embodiment of the present invention has substantially the same configuration as the pachinko machine according to the above-described first embodiment, but is provided in the game unit 3 on the surface of the game board 1. The structure of the start winning prize port 17 (reference numeral 12 in the first embodiment) differs from that of the normal symbol display device 6 and the normal symbol start port 10 related thereto.
Usually, the electric accessory 11 and the like are omitted. In FIG. 2, members having the same functions as those of the pachinko machine according to the first embodiment described above are denoted by the same reference numerals, and description thereof will be omitted.

The starting winning opening 17 is of a so-called clune type, and has a winning ball flowing down path 18 for allowing game balls to flow downward, and a winning drop falling from the lower end of the winning ball flowing down path 18. Three passing portions 19 for receiving the ball and selectively receiving the winning ball ...
Is provided. This disc 20 once receives the winning ball that has fallen from the winning ball flow down path 18,
The winning sphere is guided to any of the passing portions 19 while being rotationally moved in the circumferential direction.

<Game in Pachinko Machine> Next, a game in the pachinko machine will be described. In the pachinko machines according to the first and second embodiments, a game can be played in a substantially similar manner. In the above-mentioned pachinko machine, a predetermined number (for example, 10) of game balls shot into the game section 3 by a hitting ball shooting device (not shown) wins the general winning opening 9 or the like.
Payout) prize balls.

On the condition that a game ball has passed through the normal symbol start-up port 10, the normal symbol display device 6 starts to display the variable display of the normal symbols. Then, a lottery using a random number is performed to determine a normal symbol stop display mode in the normal symbol display device 6, and based on this determination, the variable symbol display is stopped. Here, when the stop display mode of the ordinary symbol on the ordinary symbol display device 6 is “hit” (for example, “7”), the ordinary electric accessory 11 provided in the starting winning opening 12 is held for a predetermined time (for example, 3 seconds). Only the game ball is switched to a state that is easy to accept.

On the condition that the game ball has won the starting winning opening 12, the special symbol display device 5 starts to display the variation of the special symbol. Then, a special symbol stop display mode on the special symbol display device 5 is determined by lottery using random numbers, and based on this determination, the special symbol change display is stopped.

Here, when the special symbol display mode on the special symbol display device 5 is "big hit", the special winning opening 13 receives a predetermined time (for example, 30 seconds) or a predetermined number (for example, 10) of winning balls. Open up to In addition, a continuous winning opening is provided in the special winning opening 13,
When the game ball that has won the special winning opening also wins the continuous winning opening, the opening of the special winning opening 13 described above is repeated until a predetermined number of times (for example, 16 times) is reached. In the pachinko machine according to the second embodiment, the game relating to the ordinary symbol display device 6 is not performed.

<Control Device> Each device constituting the above-mentioned pachinko machine is controlled by a control device such as a microcomputer. A schematic configuration of the control device will be described based on FIG. FIG. 3 is a block diagram illustrating a schematic configuration of the control device. As shown in FIG. 3, a control device for controlling each device constituting the pachinko machine includes a main control board 51, a special symbol control board 52, a voice control board 53,
The award ball control board 54 is a main component.

<Main Control Board> The main control board 51 is a CPU.
55, a ROM 56, and a RAM 57.
6 according to the sequence program stored in the CPU 6 etc.
By operating 55 and the like, each device constituting the pachinko machine is controlled.

The CPU 55 is connected with a reset clock pulse generating circuit 58 for supplying a reset clock pulse and an initial reset circuit 59 for initializing the CPU 55. In addition, the CPU 55 includes:
A prize ball detection switch 61 for detecting a prize ball to the general prize port 9 and a start port switch 62 for detecting a prize ball to the start prize port 12 via the input I / O 60.
A large winning port switch 63 for detecting a winning ball to the large winning port 13 and a gate switch 64 for detecting a game ball passing through the normal symbol starting port 10 are connected.

Further, in the case of the pachinko machine according to the second embodiment, a second starting port switch 65 for detecting a game ball is connected to each of the three passing sections. The second starting port switch 65 is provided for each passing section.
In the pachinko machine according to the second embodiment, the gate switch 64 is not connected.

Further, the CPU 55 has an output I / O 6
Various devices, control circuits, and boards are connected via 6. The devices connected to the CPU 55 via the output I / O 66 are a special symbol storage LED 15 and a decorative lamp display device 21 such as a decorative lamp 16 provided at an appropriate place on the game board 1. The CPU 55 transmits a control signal to these devices, and controls blinking or lighting of each LED. Although not shown, the CPU 55 includes:
Via the output I / O 66, the ordinary symbol display device 6, the ordinary symbol storage LED 14, the electric accessory LED provided inside the ordinary electric accessory 11, and the like are also connected.

The circuits connected to the CPU 55 via the output I / O 66 are a normal electric accessory control circuit 67 and a special winning opening control circuit 68. The opening and closing of the ordinary electric accessory 11 (variable member) is controlled by the ordinary electric accessory control circuit 67, and the opening and closing of the special winning opening 13 is controlled by the special winning opening control circuit 68. In the pachinko machine according to the second embodiment, the ordinary electric accessory control circuit 67 and the ordinary electric accessory 11 are not provided. The boards connected to the CPU 55 via the output I / O 66 are a special symbol control board 52, a voice control board 53, and a prize ball control board 54.

The special symbol control board 52 is a board for controlling the special symbol display device 5 to change and display the special symbol. The sound control board 53 is a board for controlling generation of sound effects and the like by the sound output device 22 such as a speaker. The prize ball control board 54 is a board for controlling the game ball launching device 23 and the prize ball payout device 24.

<Random Number Counter> The CPU 55 described above
The display on the ordinary symbol display device 6 and the special symbol display device 5 is controlled based on the lottery using random numbers. For this reason, the special symbol display device 5 includes a random number counter 69 for determining a jackpot for determining whether or not to generate a “big hit”, a random number counter 70 for determining a lost symbol, and a random number counter 71 for determining a large symbol. I have. Although not shown, in addition to these random number counters, a normal symbol hit determination random number counter for determining whether or not to generate a “hit” in the normal symbol display device 6 is also provided.

In the case of the pachinko machine according to the above-described first embodiment, a random number counter 72 for determining a lottery is provided for determining a lottery probability for each game ball that has won the starting winning opening 12. In this case, the second starting port switch 65 described above is used.
Becomes unnecessary. Furthermore, a random number counter 6 for jackpot determination
9 includes a high-probability jackpot determination random number counter 73 used when the lottery probability is high, and a low-probability jackpot determination random number counter 74 used when the lottery probability is low. Have. In the example described above, the special symbol determination means is constituted by the main control board 51.

<Game Control in Pachinko Machine> Next, game control of the pachinko machine by the above-described control device will be described.
In particular, the description will be given with emphasis on controlling the probability of occurrence of a “big hit” in the special symbol display device 5.

FIGS. 4 to 9 are flowcharts showing the procedure of game control in the pachinko machine. In the main control board 51, a main game control process (S1 to S
8) is repeated, and periodically (for example, 3), provided that the interrupt permission flag is set.
ms), the interrupt processing as shown in FIG.
S23) is performed.

<Main Game Control Process> In the main game control process, as shown in FIG.
U55 is reset to perform a startup process of the main control board 51 (S1), and an interrupt permission flag is set (S1).
2) A watchdog check process is performed (S3).

Subsequently, a transmission check of a control command (command) in the error check processing is performed (S4), and it is determined whether or not the command is being transmitted (S5). Returns to the interrupt permission process (S2). On the other hand, if the command is not being transmitted, an error check process is performed (S6), and it is determined whether a predetermined error has occurred (S7). If an error has occurred, the process returns to the interrupt permission process (S2). On the other hand, if no error has occurred, a special symbol game process for symbol display on the special symbol display device 5 is performed (S8).

<Interrupt Processing> As shown in FIG. 5, in the periodic interrupt processing performed when the interrupt enable flag is set, first, each register is saved (S1).
1) Update the random number used by the jackpot determination random number counter 69 and the like (S12), update various timers used in the control processing (S13), and update the input port (S14).

Subsequently, when an input signal from the winning ball detection switch 61, the starting port switch 62, the special winning port switch 63, the gate switch 64, and the like is detected, processing corresponding to the input signal is performed (S15).

Subsequently, a normal symbol processing (S16) for controlling the operation of the normal electric accessory 11 is performed, and the electric accessory LE is performed.
A decoration control process (S17) for controlling the blinking of D16 and the fluctuation of the ordinary symbol in the ordinary symbol display device 6 is performed.

Subsequently, the general winning opening 9, the starting winning opening 12,
A payout process for paying out a prize ball when a game ball wins in the special winning opening 13 (S18), an error process for determining whether or not various errors have occurred in the pachinko machine (S19), and a special symbol control board 52 and the like. A transmission data output process for transmitting a control command (S20) and an output process for performing other outputs (S21) are performed.

Subsequently, each register is restored (S2
2) Set an interrupt permission flag (S23) and return from interrupt processing. In the case of the pachinko machine according to the second embodiment, the ordinary symbol processing (S16) related to the ordinary symbol display device 6 is not performed.

<Input Signal Processing> The input signal processing (S15) described above is processing for determining whether or not a game ball has won a winning opening, as shown in FIG. A special winning opening switch check process (S31) for checking whether or not the switch 63 has detected a winning ball, a winning ball detecting switch for checking whether or not the winning ball detecting switch 61 has detected a winning ball. Check processing (S3
2) Start-up switch check processing (S) for checking whether or not the start-up switch 62 has detected a winning ball.
33), a gate switch check process (S34) for checking whether or not the gate switch 64 has detected a passing ball is sequentially performed.

<Special Symbol Related Random Number Updating Process> In the pachinko machine according to the above-described first embodiment, when a game ball wins in the starting winning opening 12, the lottery probability is set to a high probability based on the winning timing of each winning ball. A lottery is performed to decide whether to make a low probability. In the pachinko machine according to the second embodiment, since a predetermined lottery probability is set for each passing unit 19, such a lottery is not performed.

In each of the processes described below, the lottery probability is set to two types, high probability or low probability, for the sake of simplicity. However, three or more types of lottery probability may be set.

FIG. 10 shows an example of correspondence between the probability determining random numbers used in the pachinko machine according to the first embodiment and the lottery probabilities. Also,
FIG. 11 shows an example of correspondence between each passing unit 19 used in the pachinko machine according to the second embodiment and the lottery probability. The probability determining random numbers used in the pachinko machine according to the first embodiment are numerical values from “0” to “9” as shown in FIG. 10, and each probability determining random number is “1/71”. "1/399""1/99
One of the three types of lottery probabilities “9” corresponds.

Further, in the pachinko machine according to the second embodiment, as shown in FIG. 11, the three passing portions 19 of "A", "B" and "C" are respectively "1/215" and "1/399". "
One of the two types of lottery probabilities corresponds. The update process of the special symbol-related random numbers used for selecting the lottery probability will be described.

As shown in FIG. 7, the special symbol-related random number updating process increments and updates the high-probability jackpot determination random number used when the high probability is selected (S4).
1) It is determined whether or not the random number for high probability jackpot determination has reached an upper limit (S42). Here, if the high-probability jackpot determination random number has reached the upper limit, the high-probability jackpot determination random number is returned to the initial value (S43).

Subsequently, the low probability jackpot determination random number used when the low probability is selected is incremented and updated (S44), and it is determined whether the low probability jackpot determination random number has reached the upper limit value. Yes (S45). Here, when the low-probability jackpot determination random number has reached the upper limit, the low-probability jackpot determination random number is returned to the initial value (S4).
6).

Subsequently, the probability determining random number for determining the lottery probability is incremented and updated (S47), and it is determined whether or not the probability determining random number has reached the upper limit (S47).
48). Here, when the random number for probability determination has reached the upper limit, the random number for probability determination is returned to the initial value (S49).

Subsequently, the big hit symbol determining random number for determining the big hit symbol is updated (S49), and the process returns. In addition, the process regarding the random number for probability determination (S47-
S49) is performed only in the pachinko machine according to the first embodiment in which the probability lottery is performed every time a winning ball wins in the starting winning opening 12, and the winning ball to the starting winning opening 16 is further guided to the passing section 19, and This is not performed in the pachinko machine according to the second embodiment in which the lottery probability is set for each passing unit 19.

<Starting Port Check Process> In the starting port switch check process (S33), as shown in FIG. 8, it is determined whether or not a game ball has won the start winning port 12 (S51). If the player does not win the start winning port 12, the process returns.

On the other hand, when the game ball has won the starting winning opening 12, it is determined whether or not the value of the special symbol storage counter is less than the upper limit value "5" (S52). ", The process is returned, and when the value is less than the upper limit value" 5 ", the special symbol memory is incremented and updated (S53). That is, the number of winning balls to the starting winning ball 12 is held and stored with "5" as an upper limit.

Subsequently, it is determined whether or not the probability determining random number is a high probability selecting random number (S54). If the random number is not a high probability selecting random number, that is, if the random number is a low probability, it is a low probability jackpot determining random number. Is acquired (S57).

On the other hand, if the random number for probability determination has a high probability, a high probability flag corresponding to each special symbol storage counter value is set (S55), and a random number for jackpot determination for high probability is obtained (S56). .

Subsequently, the obtained low-probability jackpot determination random number or high-probability jackpot determination random number is set in the special symbol storage area corresponding to each special symbol storage counter value (S58), and the process returns. The determination process (S54) based on the random number for probability determination is performed only in the pachinko machine according to the first embodiment in which the probability lottery is performed every time a winning ball wins in the starting winning opening 12, and the winning in the starting winning opening 16 is performed. This is not performed in the pachinko machine according to the second embodiment in which the ball is further guided to the passing section 19 and the lottery probability is set for each passing section 19. That is, in the case of the pachinko machine according to the second embodiment, whether the probability is high or low is determined based on the lottery probability set for each passing unit 19.

<Special Symbol Game Processing> In the above-described special game processing (S8), as shown in FIG. 9, first, it is determined whether or not a game ball has won the starting winning opening 12 and there is a starting winning memory. (S61). Here, if there is no start winning memory, a demo screen display process is performed to display a demo screen such as a game explanation for the pachinko machine (S62).

On the other hand, if there is a start winning prize memory, it is determined whether or not a jackpot is permitted in the lottery using random numbers (S63). Here, when the occurrence of a big hit is permitted, a symbol to be a big hit is determined (S64), and a symbol change command for the big hit is generated (S65).

If the occurrence of the jackpot is not permitted, it is determined whether or not a reach effect is to be performed (S6).
6). Here, in the case of performing a reach effect, a stop symbol is determined so as to be "losing with reach" (S6).
7), a symbol change command for the reach loss is generated (S68).

On the other hand, when the reach effect is not performed,
A stop symbol is determined so as to be "reach without reach" (S69), and a symbol change command for no-reach loss is generated (S70). Then, each procedure described above (S6
The symbol change command generated in (5, S68, S70) is transmitted to the special symbol control board 52 (S71).

Subsequently, it is determined whether or not a jackpot has actually occurred (S72). If a jackpot has occurred, a jackpot game process of opening the special winning opening 13 for a predetermined time and a predetermined number of times is performed. After that (S73), a special symbol game ending process is performed (S74). If no big hit has occurred, the big hit game process (S73) is not performed.

<Recording Medium> By recording a game program for performing the above-described series of games on a recording medium such as a CD-ROM, a game similar to those of these gaming machines is played using a home-use gaming machine or the like. be able to. In the above-described embodiment, a pachinko machine has been described as an example of a typical ball game machine. However, as a ball game machine according to the present invention, in addition to a pachinko machine, a pachislot machine, It can also be applied to machines, arrange ball machines and the like.

[0072]

As described above, in the ball game machine according to the present invention, the lottery probability for shifting to the special game can be changed for each winning ball in the starting winning port. Therefore, even if it is not during the so-called probability fluctuation in which the lottery probability for shifting to the special game is increased, the lottery probability for shifting to the special game may increase, so that the player does not get bored with the game. , You can fully enjoy the fun of the game.

Further, since the lottery probability for shifting to the special game varies, the expectation for the occurrence of the special game changes, and in this respect, the fun of the game can be sufficiently enjoyed.

According to the recording medium on which the game program according to the present invention is recorded, a game program capable of playing the same game as the above-mentioned ball game machine is used as, for example, a game program for a home game machine. can do. In addition, the same game as the above-described ball game machine can be enjoyed on the home game machine.

[Brief description of the drawings]

FIG. 1 is a front view of a game board used for a pachinko machine according to a first embodiment of the present invention.

FIG. 2 is a front view of a game board used for a pachinko machine according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a schematic configuration of a control device.

FIG. 4 is a flowchart showing a procedure of a main game control process in the pachinko machine.

FIG. 5 is a flowchart showing a procedure of interrupt processing in a pachinko machine;

FIG. 6 is a flowchart showing a procedure of each input signal processing shown in FIG. 5;

FIG. 7 is a flowchart showing a procedure of a special symbol-related random number updating process;

FIG. 8 is a flowchart showing a procedure of a starting port switch check process shown in FIG. 6;

9 is a flowchart showing a procedure of a special symbol game process shown in FIG.

FIG. 10 is an explanatory diagram of a correspondence example between a probability determination random number and a lottery probability used in the pachinko machine according to the first embodiment.

FIG. 11 is an explanatory diagram of an example of correspondence between each passing section and a lottery probability used in the pachinko machine according to the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gaming board 2 Guide rail 3 Gaming part 4 Obstacle member 5 Special symbol display device 6 Ordinary symbol display device 7 Out opening 8 Decoration device 9 General winning opening 10 Ordinary design starting opening 11 Ordinary electric accessory 12 Starting winning opening (Example 1) 13 Large winning opening 14 Normal design memory LED 15 Special design memory LED 16 Decoration lamp 17 Starting winning opening (Example 2) 18 Winning ball flow down path 19 Passage section 20 Disk 21 Decorative lamp display device 22 Audio output device 23 Launching device 24 Payout device 51 Main control board 52 Symbol control board 53 Voice control board 54 Prize ball control board 55 CPU 56 ROM 57 RAM 58 Reset clock pulse generation circuit 59 Initial reset circuit 60 Input I / O 61 General winning ball sensor 62 Start Winning ball sensor 63 Big winning opening switch 64 Gate switch 65 No. Starting port switch 66 I / O for output 67 Ordinary electric accessory control circuit 68 Big winning opening control circuit 69 Random number counter for jackpot determination 70 Random number counter for losing symbol determination 71 Random number counter for large symbol determination 72 Random number counter for probability determination 73 High Large probability random number counter 74

Claims (9)

[Claims] A special symbol display device for variably displaying a special symbol having a plurality of display modes; and a special symbol display device for starting a variable display of the special symbol on the special symbol display device on condition that a game ball is won. Starting winning prize port, a special symbol determination means for performing a lottery using random numbers based on a predetermined winning probability, and determining a symbol stop display mode in the special symbol display device, and a symbol in the special symbol display device In the case where the stop display mode constitutes a predetermined prize mode, in a ball game machine that performs a special game advantageous to the player as compared with the normal game, for each game ball that has won the starting winning opening, A ball game machine characterized in that the winning probability in the special symbol determining means can be changed. 2. The game machine according to claim 1, wherein a plurality of passing portions are provided for selectively passing the game balls that have won the starting winning opening, and a winning probability in the special symbol determination means is set for each passing portion. The ball game machine according to claim 1. 3. The ball game machine according to claim 1, wherein a lottery using a random number is performed for each game ball winning the starting winning opening, and a winning probability is set in the special symbol determination means. 4. The winning probability in the special symbol determination means can be increased or decreased from a reference value for each game ball winning the starting winning opening. The ball game machine described in the item. 5. The ball game machine according to claim 1, further comprising a prize display means for displaying that a game ball has won at said starting port. 6. The game machine according to claim 6, wherein the number of game balls winning the starting port can be stored up to a predetermined number, and a change display of a special symbol on the special symbol display device is started based on the stored predetermined number of game balls. The bullet according to any one of claims 1 to 4, further comprising a winning probability display means for displaying a winning probability in the special symbol determining means for each of the predetermined number of game balls. Ball game machine. 7. A changing special symbol winning probability display means for displaying a winning probability in said special symbol determining means with respect to a special symbol which is currently being displayed on the special symbol display device. Item 5. The ball-and-ball game machine according to any one of Items 1 to 4. 8. The bullet according to any one of claims 1 to 4, further comprising effect means for performing different effects based on a difference in winning probability in said special symbol determination means. Ball game machine. 9. A special symbol display device for variably displaying a special symbol composed of a plurality of display modes, and for starting a variable symbol display on the special symbol display device on condition that a game ball is won. Starting winning prize port, a special symbol determination means for performing a lottery using random numbers based on a predetermined winning probability, and determining a symbol stop display mode in the special symbol display device, and a symbol in the special symbol display device In the case where the stop display mode constitutes a predetermined prize mode, in a recording medium in which a game program for performing a special game advantageous to the player as compared with the normal game is recorded, A recording medium on which a game program is recorded, wherein a function for changing a winning probability in the special symbol determining means is added for each special symbol determining means.