JP2003164613A - Pachinko game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pachinko game machine wherein an offset is provided by making a selection rate for selecting at least one first stopping pattern from among a plurality of stopping patterns different from a selection rate for selecting a second stopping pattern configuration at least other than the first one, and game interest is increased. <P>SOLUTION: A stopping pattern-selecting means 54 which selects the kind of a stopping pattern to be displayed on special pattern-displaying sections 23a to 23c in response to the judging results of drawing-judgement means 51 and 52 is provided. The selection rate of the stopping pattern-selecting means 54 for selecting at least one stopping pattern from among the plurality of stopping patterns is made different from the selection rate for selecting a stopping pattern at least other than the first one. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball game machine with improved technology for selecting a stop symbol mode after a symbol displayed on a symbol display means has changed.

[0002]

2. Description of the Related Art Conventionally, in a ball game machine such as a pachinko machine provided with a symbol starting opening and, for example, three symbol display parts, in a game area of a game board where a gaming ball is fired, the gaming ball is a symbol starting opening. When a prize is won, a plurality of types of symbols (for example, “0” to “9”) are variably displayed on the symbol display portion, and the stopped symbol aspect after the variation is the specific symbol aspect “XXX” (X = 0 to 9). When it becomes), a special game that is advantageous to the player occurs, and for example, a variable winning opening that is provided in the game area and normally closed is opened.

The control device of such a model, when the number of reserve balls (the number of game balls that have not been used for fluctuations in the symbols among the game balls won in the symbol starting port) is less than four, the game balls are An internal lottery is performed at the timing of winning the symbol starting port, and a lottery determination is made based on the extracted random number value and the hit / miss table.

In the case of [hit], any one of 10 kinds of specific symbol modes "XXX" (X = 0 to 9) is selected as the stop symbol mode, and in the case of [out], a plurality of types of stop symbol modes are removed. Select one of the symbol modes. Then, the display control is performed so as to display the selected stop symbol mode, and in the case of [hit], the stop symbol mode (specific symbol mode;
After the establishment of "XXX"), the opening / closing control of the variable winning a prize port is performed during the special game.

By the way, for example, in the internal lottery, there is a probability of 1/300 [hit], and then, as the stop symbol mode, 10 kinds of specific symbol modes "XXX" (at a uniform selection rate of 1/10) Any of X = 0 to 9) is selected. In this case, as shown in FIG. 20A, the odd reach state “Y
↓ Y "(Y = 1,3,5,7,9," ↓ "indicates a changing symbol) and becomes a specific odd symbol pattern" YYY "(Y = 7 in the figure) and even Reach state "Z ↓ Z"
(Z = 0,2,4,6,8) becomes a specific even symbol pattern "ZZZ" (Z = 6 in the figure), the ratio is 1:
Becomes 1.

In the so-called first-class pachinko machine and the like, if a specific odd number symbol mode is established, for example, from the end of the special game accompanying it until the next special game occurs, the probability changes and internal lottery occurs. There are many things that give the player some kind of profit associated with the special game, such as changing the probability of hitting 1/300 to a high probability of 1/60.

On the other hand, for example, in the internal lottery, there is a probability of 299/300 [Out], then with a probability of 1/10 [Reach with Reach], with a probability of 9/10 [Reach without Reach] ] It becomes. In the case of [with and without reach], FIG.
As shown in (b), the ratio between the odd reach state “Y ↓ Y” and the even reach state “Z ↓ Z” is also 1: 1.

Here, as a whole, the ratio (299/300) × (1/10) of [reach with or without reach] is about 30 times the 1/300 ratio of [per hit]. Therefore, when the odd reach state "Y ↓ Y" is reached, the specific odd symbol pattern "YY"
The hit reliability which becomes "Y" is about 1 / (1 + 1 x 30) = 1/31, and when the even reach state "Z ↓ Z" is reached, the hit reliability which becomes the specific even symbol pattern "ZZZ" is about 1 / (1
+1 x 30) = 1/31, and the hit reliability of both of these is the same.

On the other hand, in the case of [hit], the ball game machine with the re-changing function is put into practical use after the specific even symbol pattern "ZZZ" is temporarily stopped and then re-varies to become the specific odd symbol pattern "YYY". Has been done. Here, as shown in FIG. 21, the ratio in the case where the specific even-numbered symbol aspect “ZZZ” temporarily changes to a specific odd-numbered symbol aspect “YYY” after changing again is set to 1/3. In the case of [hit], in the end, in order to make the ratio of the case of becoming the specific odd symbol aspect “YYY” and the case of becoming the specific even symbol symbol aspect “ZZZ” 1: 1,
The ratio between the odd reach state “Y ↓ Y” and the even reach state “Z ↓ Z” needs to be 1: 3.

Therefore, when the odd reach state "Y ↓ Y" is reached, the degree of reliability of hitting the specific symbol mode is about 1 / (1
+ 2 × 30) = 1/61, and when the even reach state "Z ↓ Z" is reached, the degree of reliability of hitting the specific symbol is approximately
3 / (3 + 2 x 30) = 3/63, and even reach state "Z ↓
The hit reliability (3/63) when it becomes "Z" is 3 more than the hit reliability (1/61) when it becomes "Z ↓ Z" in the odd reach state.
It will be about twice as big.

[0011]

[Problems to be Solved by the Invention] In the conventional ball game machine, when the [hit] is determined by lottery in the internal lottery, as a stop symbol mode to be displayed after the symbol changes, one of a plurality of specific symbol modes Select, but the selection rate for selecting any particular symbol aspect is equal, lacking fun because the selection rate is not biased, for example, depending on the type of the specific symbol aspect that has been established There is a problem that it is difficult to improve the game playability when an advantageous state is to be given.

Further, even when [out] is determined by the lottery in the internal lottery, any one of a plurality of out-of-design patterns is selected as the stop symbol mode to be displayed after the variation of the symbol, but the selection rate is also biased. There is a side lacking in fun because it is not designed to have. The purpose of the present invention is to make the selection rate different from the selection rate for selecting the first stop symbol mode and the selection rate for selecting the second stop symbol mode among a plurality of types of stop symbol modes, thereby increasing the game playability. It is to provide a ball game machine capable of.

[0013]

Means for Solving the Problem The ball game machine of the present application is
Symbol display means for displaying a plurality of kinds of symbols on one or a plurality of symbol display parts respectively so as to be varied and stopped, and a stop symbol mode after variation of the symbols displayed by the symbol display means is preset. Ball game provided with special game generating means for generating a special game advantageous to the player in the case of the symbol mode, and lottery judging means for judging whether or not to hit the special game generating means by lottery Applied to the machine.

This ball game machine is provided with a stop symbol selecting means for selecting the type of the stop symbol aspect, and the stop symbol aspect which this stop symbol selecting means selects according to the determination result of the lottery determination means is at least the first. Including a stop symbol aspect and a second stop symbol aspect, the stop symbol selecting means is characterized in that the selection rate for selecting the first stop symbol aspect and the selection rate for selecting the second stop symbol aspect are made different. It is a thing.

Here, the stop symbol selection means, when the lottery determination means determines to activate the special game generation means,
The type of the specific symbol mode to be displayed by the symbol display means is configured to be selected based on the hit symbol random number extracted value extracted from the hit symbol random number generating means and the hit symbol selection table, and is generated by the hit symbol random number generating means. It is preferable to set the total number of winning symbol random numbers larger than the number of types of the specific symbol aspect.

When the lottery determination means determines that the special game generation means is not activated, the stop symbol selection means selects at least one stop symbol type included in the deviation symbol aspect displayed by the symbol display means, and the deviation symbol random number. Configured to select based on the outlier symbol random value extracted from the generating means and the outlier symbol selection table, and set the total number of outlier random numbers generated by the outlier random number generating means to be greater than the number of stop symbol types. Preferably.

Further, the symbol display means is configured to display a plurality of types of symbols on two or more symbol display portions,
When the lottery determination means determines that the special game generation means is not operated, the stop symbol selection means selects the type of the first stop symbol included in the out-of-symbol symbol aspect displayed on the symbol display means based on predetermined control. Together with the type of the second stop symbol included in the out-of-design symbol mode, a predetermined for the first stop symbol based on the out-of-symbol random number extraction value extracted from the second out-of-symbol random number generating means and the second out-of-symbol selection table. It is preferable to set the total number of deviation symbol random numbers generated by the second deviation symbol random number generating means to be larger than the number of types of the second stop symbols. In this case, the second off symbol selection table is composed of a plurality of selection tables, and the stop symbol selecting means adopts the selection table in relation to the first stop symbol to select the second stop symbol. Good.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example of a case in which the present invention is applied to a so-called type 1 pachinko machine installed in an island structure of a game hall. As shown in FIGS. 1 to 3, the pachinko machine 1 has a rectangular frame-shaped outer frame 3 and a front frame 4 pivotably attached to the outer frame 3 so that the outer frame 3 is an island of a game hall. It is detachably attached to the structure. A card lending device 2 is installed on the left side of the pachinko machine 1 so as to be adjacent to it, and the pachinko lending machine 1 and the card lending device 2 are electrically connected.

On the front frame 4 of the pachinko machine 1, a game board 5 is detachably mounted from the back side, and a glass door 6 having a window 6a is pivotally mounted on the front side of the game board 5 so as to be openable and closable.
A front plate 7 having an upper plate 8 for accommodating game balls attached to the lower side of the glass door 6 is pivotally mounted to be openable and closable, and overflows from the upper plate 8 to a lower portion of the front plate 7 in the front frame 4. A lower plate 9 for accommodating the extracted game balls is fixedly provided. The firing handle 11 of the firing means 10 is attached to the right side of the lower plate 9.

The firing means 10 comprises a firing handle 11, a firing motor 12, and a hammer 13. When the player turns the firing handle 10, the firing motor 12 is driven and the hammer 13 is actuated.
The game balls supplied from the game balls are hit one by one and are shot to the game area 5a of the game board 5. By adjusting the turning operation angle of the firing handle 11, it is possible to adjust the striking force with which the batting mallet 13 strikes the game ball, that is, the firing speed of the game ball.

As shown in FIG. 1, a card type lending device 2
The card insertion slot 2a is formed in the card insertion slot 2a.
A ball lending card (not shown) for exclusive use of ball lending can be inserted from a, and the game balls for the frequencies recorded on the ball lending card can be rented using the operation panel 14 of the pachinko machine 1.

The operation panel 14 is provided on the right front surface of the upper plate 8, and the operation panel 14 has a balance display portion 14a for displaying the frequency balance of the ball lending card inserted in the card lending device 2 and a card. Lending switch 14 operated to instruct the rental device 1 to lend a game ball for a predetermined number of times
b and a return switch 14c that is operated to instruct the return of the ball lending card inserted in the card lending device 1.

As shown in FIG. 4, the game board 5 is provided with a guide rail 15 composed of an outer rail and an inner rail in a substantially annular shape. A game area 5a is formed inside the guide rail 15 and the launch means is provided. The game ball shot by 10 is guided by the guide rail 15 and is thrown into the upper part of the game area 5a. Incidentally, at least the game area 5a of the game board 5 can be seen from the window 6a of the glass door 6.

In this game area 5a, in addition to many obstacle nails, a plurality of ordinary winning means 19, special symbol starting means 2
0, big winning means 21, normal symbol starting means 22, LCD
A display unit 23 including a (liquid crystal display) is provided in the arrangement shown in the drawing.

The plurality of normal winning means 19, the special symbol starting means 20, the big winning means 21, the normal symbol starting means 22, each has a ball detection switch for detecting the gaming ball to win,
Of these, ordinary winning means 19 and special symbol starting means 2
When the game ball wins 0 and the big winning means 21, the payout means 3
A predetermined number of game balls are paid out as a prize by 5 (for example, 10 in a prize to a plurality of ordinary winning means 19, 5 in a prize to special symbol starting means 20 and 15 in a prize to large prize means 21). To be done.

The special symbol starting means 20 is opened and closed left and right 1
It is a so-called electric tulip having a pair of opening and closing claws 20a. A pair of opening and closing claws 20a open and close over a closed position indicated by a solid line and an open position indicated by a chain line, and the open position is closer to the special symbol starting means 20 than when the opening and closing claws 20a are in the closed position. The ball will be easier to win. Normally, a pair of open / close claws 20a
Are held in a generally closed position.

The big winning means 21 is an opening / closing plate 2 which is opened and closed backward and forward.
1a, and a specific region 21b is provided inside. When the open / close plate 21a is in the closed position, the game balls do not win the big winning means 21, and when the open / close plate 21a is in the open position, the game balls easily win the big winning means 21. Normally, the opening / closing plate 21a is held in the closed position. Normally the symbol starting means 22 is configured as a gate type through which game balls can pass.

The display means 23 has three (left, center, right)
Special symbol display portions 23a-23c and two (left, right) normal symbol display portions 23d, 23e are provided. On condition that the game ball wins the special symbol starting means 20, plural kinds of special symbols (for example, 10 kinds of symbols of "0" to "9") are variably displayed on each of the special symbol display portions 23a to 23c. It Then, basically, the left special symbol display portion 23a
The left special symbol is stopped, and subsequently, the right special symbol display portion 23
The right special symbol stops at c, and finally, the middle special symbol display section 2
The special symbol stops in 3b.

After the change of the special symbol displayed in the special symbol display portions 23a to 23c, the stop symbol mode becomes a preset specific symbol mode "XXX" (for example, any of X = 0 to 9). Special games that are beneficial to players are generated. Then, the opening / closing plate 21a is switched to the open position, and when a predetermined number (for example, 10) of game balls are won in the special winning means 21 or when a predetermined time (for example, 30 seconds) elapses, the opening / closing plate 21a is opened.
Switches to the closed position.

Such a round can be continued up to a predetermined number of times (for example, 15 times), and during each round, if the game ball passes through the specific area 21b in the special winning means 21, it is possible to shift to the next round. If the game ball does not pass through the specific area 21b, the special game ends with the round.

On the other hand, on the condition that the game ball passes through the normal symbol starting means 22, the normal symbol display portions 23d, 23e.
A plurality of types of ordinary symbols (for example, two types of symbols "-" and "F") are variably displayed. Ordinary symbol display section 23d,
When the stop symbol mode after the change of the normal symbol displayed in 23e becomes the specific symbol mode (for example, "FF"), the pair of opening / closing claws 20a of the special symbol starting means 20 are opened for, for example, 0.2 seconds.

Now, as shown in FIGS. 2 and 3, on the back side of the front frame 4, a back mechanism plate 30 for pressing the game board 5 from the back side is detachably mounted by a plurality of locking tools 30a and the like. . An opening 30b is formed in the back mechanism plate 30, and the opening 30b
A prize ball tank 33 and a tank rail 34 extending from the prize ball tank 33 are fixed to the upper side of b.

On the left side of the opening 30b of the back mechanism plate 30,
A payout means 35 connected to the downstream end of the tank rail 34 is fixedly provided, and a passage unit 36 is connected to the payout means 35. The game balls on the island structure side are supplied to the payout means 35 via the prize ball tank 33 and the tank rail 34, and the payout means 35 pays out the game balls as a prize if necessary. At this time, the game balls from the payout means 35 are paid out to the upper plate 8 via the passage unit 36, and to the lower plate 9 when the upper plate 8 is full.

A back cover 3 is provided on the back side of the central portion of the game board 5.
7 is fixedly provided, and the back cover 37 is provided on the back mechanism plate 3
It is fitted in the opening 30b of 0. A main control board 39 is provided inside a case 38 fixed to the back cover 37, and a display control board 40 is provided on the front side thereof. A lamp control board 42 is provided inside a case 41a fixed to the back cover 37 below the main control board 39.
A sound control board 43 is provided inside a case 41b fixed to the left side of the case 41a.

A case 44 is fixed to the lower side of the opening 30b of the back mechanism plate 30, and the power supply board 4 is provided inside the case 44.
5 and a payout control board 46 are provided. Firing motor 1
On the rear side of 2, a firing control board 48 is provided inside a case 47 fixed to the front frame 4. in this way,
The boards 39, 40, 42, 43, 45, 46, and 48 are configured as separate boards, and the control boards 39, 40, 42, 43, and 46, excluding the power board 45 and the firing control board 48, have CPs.
Microcomputers each having U and ROM or RAM are provided.

Main control board 39 and other sub-control boards 4
0, 42, 43, and 46 are electrically connected to each other via a plurality of signal lines, and the main control board 39 to the sub control board 4 are connected.
Command signals with simplified control information are transmitted and output to 0, 42, 43, and 46 as various control signals for executing control relating to the game.

Next, the control board 39 of the pachinko machine 1,
Various functions achieved based on a plurality of control programs stored in advance in the control device including 40, 42, 43 and 46 will be described based on the functional blocks of FIG. However, these various functions are achieved by the above-mentioned microcomputer or the like.

The main control means 50 is provided on the main control board 39, the display control means 80 is provided on the display control board 40, the lamp control means 85 is provided on the lamp control board 42, and the sound control board is provided. The sound control means 86 is configured on 43, and the payout control means 8 is provided on the payout control board 46.
7 is configured, and the firing control means 88 is provided on the firing control board 48.
Is configured.

As shown in FIG. 5, the main control means 50 comprises lottery means 51, determination means 52, special game generation means 53, stop symbol selection means 54, probability varying means 55, and command output means 56.

The lottery means 51 uses, for example, a lottery counter to set a random number value which is a hit / off deviation in a predetermined range every minute update cycle (about 2 msec cycle).

[0] to [299] are sequentially counted up and updated, and when the number of reserved balls is less than 4, the random number of hit / off when the game ball is won in the special symbol starting means 20 is extracted. In addition, the reserved ball is a special symbol starting means 2
It is a game ball that has not been used for fluctuations in special symbols among the game balls that have won 0.

The judging means 52 judges whether it is a “hit” or a “hit” based on a predetermined hit / miss judgment table and the random number of hit / miss extracted by the lottery means 51. For example, 1/30
If the random number of hits [7] is extracted with a probability of 0, it is judged as [hit], and if the random number of deviation (any random value other than [7]) is extracted with a probability of 299/300, it is judged as [out] To do.

When the special game generation means 53 receives the judgment result from the judgment means 52 and hits, as described above,
When the stop symbol mode after the change of the special symbols displayed in the special symbol display portions 23a to 23c becomes the specific symbol mode "XXX", the opening / closing plate 18a of the special winning means 18 is opened / closed, which is advantageous to the player. Generate special games. The lottery means 51 and the determination means 52 correspond to lottery determination means for making a lottery determination as to whether or not to activate the special game generating means 53.

The stop symbol selecting means 54 is to select the kind of the stop symbol mode after the change of the special symbol displayed on the special symbol display portions 23a to 23c by lottery according to the determination result of the determining means 52. As shown in FIG. 6, a specific symbol mode selecting means 60 having a hit symbol random number generating means 62 and a hit symbol selecting table 63, a left out symbol random number generating means 64, a left out symbol selecting table 65 and a right out symbol random number generating. The device 66 and the right out-of-design symbol selection table 67, the out-of-out symbol random number generating means 68, the out-of-reach inside-outside symbol selection table 69, and the non-reach out-of-inside outside symbol selection table 70, and the out-side symbol aspect selecting means 61. .

For example, among the 1000 possible stop symbol modes, the specific symbol mode selection means 60 selects any of the 10 types of specific symbol modes “XXX” (X = 0 to 9), and the deviation symbol mode is selected. Means 61, 10 types of specific symbol mode "X
Any of 990 types of out-of-design patterns other than XX ”(including out-of-reach with out-reach design (eg,“ 767 ”) and out-of-reach out-of-reel design (eg,“ 763 ”)) is selected.

The specific symbol mode selecting means 60 is the judging means 5
When the determination result by 2 is [hit] (that is, when the determining means 52 determines to activate the special game generating means 53), the type of the specific symbol aspect displayed on the special symbol display portions 23a to 23c is hit. Hit symbol random number extraction value extracted from the symbol random number generation means 62 (

[Any of [0]-[19])
And the winning symbol selection table 63 are selected. As shown in the hit symbol selection table 63 of FIG. 7, for example,
In the case of the winning symbol random number extraction value [7], the specific symbol mode "77"
7 ”is selected, and in the case of the winning symbol random number extraction value [14], the specific symbol mode“ 444 ”is selected.

Hit symbol random number generated by the hit symbol random number generating means 62

[0] to [19], a total of 20 is set to be larger than the number 10 of types of the specific symbol aspect “XXX” (X = 0 to 9), and by doing so, 10 types of the specific symbol aspects “ The selection rate for selecting at least one specific symbol mode in “XXX” (X = 0 to 9) is different from the selection rate for selecting a specific symbol mode other than the at least one.

In the present embodiment, the specific symbol mode "777"
The selection rate of 6/20, the specific symbol aspect "111" and "333"
And the selection rates of “555” and “999” are 1/20, and the specific symbol modes “000”, “222”, “444” and “66”
The hit symbol selection table 63 is configured so that the selection rates of "6" and "888" are 2/20, respectively. Here, for example, the first stop symbol aspect is “777”, and the second stop symbol aspect is “111”, “333”, “55”.
5 ”,“ 999 ”, or“ 000 ”,“ 222 ”,
These are “444”, “666”, and “888”.

On the other hand, when the determination result by the determination means 52 is [displacement] (that is, when the determination means 52 determines not to activate the special game generation means 53), the removal symbol mode selection means 61 first special Symbol display portions 23a-23c
Included in the out-of-drawing pattern mode to be displayed in, the left out-of-going symbol random number extraction value (the type of left stop symbol extracted from the out-of-left symbol random number generating means 64

[Any of [0] to [19]) and the left-off symbol selection table 65 are used for selection.

Next, the out-of-design symbol aspect selecting means 61 extracts the right out-of-symbol random number extraction value (the type of right stop symbol extracted from the out-of-right symbol random number generating means 66) (

[Any of [0] to [19]) and the right deviation symbol selection table 67, based on the left stop symbol, predetermined arithmetic processing is performed to select, and finally, the middle stop symbol type is deviated from the middle. Outlier symbol random number extracted value extracted from the symbol random number generating means 68 (

[0] to [19]) and a middle-out symbol design selection table for reach 69 or a middle-out symbol design selection table 70 for non-reach, based on a predetermined right stop symbol (may be left stop symbol) Select by performing arithmetic processing.

The first stop symbol corresponds to the left stop symbol or the right stop symbol, and the second stop symbol corresponds to the right stop symbol or the middle stop symbol. As shown in the left deviation symbol selection table 65 in FIG. 8, for example, in the case of the left deviation symbol random number extraction value [7], the left stop symbol “7” is selected, and in the case of the left deviation symbol random number extraction value [14] The left stop design "4" is selected.

Left-off symbol random number generated by the left-off symbol random number generating means 64

The total number 20 of [0] to [19] is set to be larger than the number 10 of the types of left stop symbols (“0” to “9”). In the present embodiment, the selection rates of the left stop symbols “0”, “2”, “4”, “6” and “8” are 3/20, respectively, and the left stop symbols “1”, “3” and “5”. The left-off symbol selection table 65 is configured so that the selection rates of “7” and “9” are 1/20, respectively.

As shown in the right deviation symbol selection table 67 of FIG. 9, for example, in the case of the right deviation symbol random number extraction value [1], the difference value “± 0” of the right stop symbol to the left stop symbol is selected, and the right In the case of the outlier symbol random number extraction value [14], the difference value "+8" of the right stop symbol to the left stop symbol is selected, and the selected difference value (for example, "± 0" or "+8") is left stop symbol ( For example, a calculation process of adding (or subtracting) to “7” is performed and a right stop symbol (for example, “7” or “5”;
However, in the arithmetic processing, when the added value is two digits, the lower one digit is calculated as the right stop symbol) is selected.

Right deviation pattern random number generated by the right deviation pattern random number generation means 66

The total number 20 of [0] to [19] is set to be larger than the number 10 of the types of right stop symbols “0” to “9”. In the present embodiment, the difference values “± 0”, “+1” and “+”.
The selection rates of "2", "+8" and "+9" are 3/20 respectively, and the selection rates of the difference values "+3", "+4", "+5", "+6" and "+7" are 1/20 respectively. As described above, the left out-of-left symbol selection table 67 is configured.

The disengagement symbol selection table for selecting the medium stop symbol for disengagement, as shown in FIG. 10, is composed of a reach-out middle-outside symbol selection table 69 and a non-reach in-outside symbol selection table 70. Cage, right-handed random number

[0]
In the case where the difference value becomes "± 0" in any of ~ ~ [2], that is, when the left stop symbol and the right stop symbol are the same and the reach state is reached, the middle-out symbol design table for reach 69 Is adopted, in the case of a difference value other than the difference value “± 0” due to any of the right deviation symbol random numbers [3] to [19], that is, the left stop symbol and the right stop symbol are different, and the reach state is reached. If not, the non-reach middle-edge symbol selection table 70 is adopted. The second stop symbol aspect here is a middle stop symbol.

When the reach-out medium symbol design selection table 69 of FIG. 10 is adopted, for example, in the case of the medium-edge symbol random number extraction value [1], the difference value “+1” of the medium symbol to the right symbol is selected. In the case of the out-of-center symbol random number extraction value [14], the difference value “+5” of the medium-stop symbol to the right-stop symbol is selected, and when the non-reach medium-edge symbol selection table 70 of FIG. 10 is adopted, for example, In the case of inside out symbol random number extraction value [1], the difference value “± 0” of the inside stop symbol for the right stop symbol is selected, and in the case of inside out symbol random number extraction value [14], the inside stop symbol for the right stop symbol The difference value “+7” is selected.

Then, the selected difference value (for example, "+
1 "or" +5 ") is added to the right stop symbol (for example," 7 ") to perform an arithmetic process, and a medium stop symbol (for example," 8 "or" 2 "; provided that in the arithmetic process, the added value is If the number is 2 digits, the last 1 digit is calculated as a medium stop symbol) is selected. Inside-out symbol random number generated by inside-out symbol random number generating means 68

The total number 20 of [0] to [19] is set to be larger than the number 10 of the types of the intermediate stop symbols “0” to “9”.

In this embodiment, as shown in FIG. 10, in the case of the reach state, the selection rate of the difference value "+1" is 4/20,
The selection rates of the difference values "+2", "+3", and "+4" are 3 /, respectively.
20, the selection rates of the difference values "+5" and "+6" are 2/20, and the selection rates of the difference values "+7", "+8" and "+9" are 1/20, respectively.
The inside-out symbol design selection table 69 is configured so that the difference value “± 0” to “+” is reached when the reach state is not reached.
The non-reach medium-edge symbol selection table 70 is configured such that the selection rates of "9" are 2/20, respectively.

By the way, as described above, the total number of the deviation symbol random numbers 20 generated by the deviation symbol random number generating means 64, 66, 68 is set to be larger than the number 10 of the kinds of the stop symbols,
The selection rate is set to each outlier symbol selection table 65, 67, 6
Since the setting is made as shown in 9, 70, the deviation symbol selecting means 61 selects the stop symbol mode other than the at least one selection rate for selecting at least one deviation symbol mode among a plurality of types of deviation symbol modes. It can be different from the selection rate you choose.

Now, as shown in FIG. 5, the probability changing means 5
5, when the determination result of the determination means 52 is "hit", for example, the specific symbol aspect selected by the stop symbol selection means 54 is a specific odd symbol aspect "YYY" (Y = 1, 3, 5, 7, 9)
In either case), the probability of operating from the end of the special game this time to the start of the next special game is changed by the lottery means 51 to extract the random number of hits and the judgment means 52 to judge "hit". (For example, 1/300 → 1/60), shorten the fluctuation time of the normal symbol (for example, 30 seconds → 5 seconds), the special symbol starting means 2 when the stop symbol mode of the normal symbol becomes the specific mode
Increase the open time of 0 (for example, 0.2 seconds to 2 seconds).

The command output means 56 is the display control means 8
0, the lamp control means 85, the sound control means 86, and the payout control means 87, respectively, transmit and output control commands as needed. In particular, from the main control means 50 to the display control means 80, as a control command, a display control command including at least information on the stop symbol selected by the stop symbol selecting means 54 is transmitted and output.

The display control means 80 is a special symbol control means 8
1 and the normal symbol control means 82, the special symbol control means 81 controls the display means 23 to display a plurality of special symbols variably on the three special symbol display portions 23a to 23c, respectively.
After the lapse of a predetermined time, so as to display the stop symbol mode selected by the stop symbol selecting means 54, basically, the left symbol →
Stop the fluctuation in the order of right symbol → middle symbol. The special symbol display portions 23a to 23c and the special symbol control means 81 correspond to the symbol display means.

Now, as shown in FIG. 11, the judging means 52
When the selection result is [hit], and the specific odd symbol mode “YYY” is selected by the specific symbol mode selection means 60, the display means 23 displays (a) symbol variation →
(B) Left odd symbol stop → (c) Right odd symbol stop; odd reach state → (d) Medium odd symbol stop; Specific odd symbol aspect "YYY"("777" in the figure) established, displayed in that order Then, when the specific even number symbol aspect "ZZZ" is selected by the specific symbol aspect selection means 60, the display means 23 displays (a) symbol variation → (e) left even symbol stop →
(F) Right even symbol stop; even reach state → (g) Medium even symbol stop; specific even symbol pattern “ZZZ” (“666” in the figure) is established, and displayed in that order.

According to the hit symbol selection table 63 of FIG. 7, assuming that there is no re-changing function in this embodiment, in the case of [hit], the odd reach state "Y ↓ Y" and the even reach state " The ratio in the case of becoming "Z ↓ Z" becomes 1: 1 and the ratio in the case where the specific odd symbol pattern state "YYY" is satisfied and the case where the specific even symbol pattern state "ZZZ" is satisfied are also 1: 1.

On the other hand, as shown in FIG.
The result of judgment by [becomes out] is [out], and the odd symbol reach out symbol mode "YXY" (X ≠ Y) in the out symbol mode selecting means 61.
When is selected, on the display means 23, (a) symbol fluctuation → (b) left odd symbol stop → (c) right odd symbol stop; odd reach state → (d) middle symbol stop; odd reach out symbol mode "YXY"("767" in the figure) is established, and displayed in the order that the even symbol reach out symbol mode "ZXZ" (X ≠ Z) is selected by the out symbol mode selection means 61, and is displayed. In the means 23, (a) symbol fluctuation → (e)
Left even symbol stop → (f) Right even symbol stop; even reach state → (g) Medium symbol stop; Even reach out symbol pattern "ZX
“Z” (“636” in the figure) is established.

Left-off symbol selection table 65 of FIG. 8 and FIG.
Based on the right deviation pattern selection table 67,
In the case of, the ratio between the odd reach state “Y ↓ Y” and the even reach state “Z ↓ Z” is 5:15, and it is specified that the odd reach out symbol pattern state “YXY” is established. The ratio when the out-of-reach mode “ZZX” is established is also 5:15.

Here, as shown in FIG. 13, as a whole, the ratio of odd number reach state (specific odd symbol pattern) in [hit] is 1 and even number reach state (specific even symbol pattern) in [hit] ) Is 1, the odds reach state (off odd reach out pattern mode) in [off] is
2 × 299 × (3/20) × (5/20) = 22.425, and the rate of becoming an even reach state (even reach out pattern mode) in [Out] is 2 × 299 × (3/20) × (15 / 20) = 67.275. Therefore, when the odd reach state is reached, the specific symbol form is established. The reliability is 1 / (1 + 22.425) = 1 / 23.425, and when the even reach state is established, the specific reliability is established. 1 / (1 + 67.275) = 1 / 68.275.

The normal symbol control means 62 is the display means 2
By controlling 3 to display a plurality of normal symbols in the two normal symbol display portions 23d and 23e in a variable manner, respectively, based on the game ball passing through the normal symbol starting means 22, the main control means 50.
In, a lottery determination of “hit” / “out” is performed, and based on the result of the determination, the variation of the normal symbol is stopped so that the specific mode or the out mode is displayed as the stop symbol mode after a predetermined time has elapsed.

Next, a series of game controls executed by the main control means 50 will be described with reference to the flowcharts of FIGS. However, Si (i =
1, 2, 3 ...) Indicate each step. As shown in FIG. 14, when the power is supplied to the power supply board 45 from a state in which the power is not supplied, this game control is started. First, the interrupt is prohibited (S1), and the stack pointer is set (S2).
Then, the CPU built-in register setting (S3) and the interrupt mode setting (S4) are performed.

Next, it is determined whether the RAM clear signal is ON (S5), and when the RAM clear signal is OFF (S5; No), it is determined whether the backup confirmation flag is ON (S6). When the RAM clear signal is ON (S
5; Yes) or when the backup confirmation flag is OFF (S5; No, S6; No), the process proceeds to S7, and when the backup confirmation flag is ON (S5; No, S6; Yes)
Then, the process proceeds to S12.

In S7, the work area of the RAM is initialized, the past game information is erased, and an initial setting command is transmitted to each sub control board 40, 42, 43, 46 (S7), and next. Then, the CTC is initialized (S
8), the interrupt is permitted (S9), and then the initial value random number generation process (S10) and the main loop random number generation process (S1).
Enter an infinite loop that repeats 1) and.

In the initial value random number creation processing of S10, the initial value random number is, for example,

It is updated in the range of [0] to [299] and S
In the main loop random number creation processing of 11, the left-off design random number, the right-off design random number, and the middle-out design random number, respectively, for example,

It is updated in the range of [0] to [19]. The initial value random number is a random number for determining the initial value for starting the update of the hit / off random number performed in S22, which will be described later, and the left-off design random number, the right-off design random number, and the middle-out design random number are out. It is a random number for selecting and determining the left stop symbol, the right stop symbol, and the middle stop symbol at the time.

On the other hand, as shown in FIG. 15, the game main control is started by the interrupt processing at every predetermined cycle (for example, 2 msec), and first, the interrupt is prohibited (S20) and each register is saved. (S21), random-interval random number generation process (S
22) is performed. In the random number generating process within the periodic interrupt of S22, the hit / miss random number is, for example,

While being sequentially updated in the range of [0] to [299], the winning symbol random number is, for example,

It is sequentially updated in the range of [0] to [19]. Further, in this routine for generating random numbers within a periodic interrupt, the initial value random number updated in S11 is extracted as appropriate, and the initial value for starting the update of the hit / miss random number is also based on the initial value random number (that is, extracted). It is updated to the initial value random number.

Next, a switch input management process (S23) is performed, and when the number of reserved balls is less than 4, when a detection signal from the ball detection switch of the special symbol starting means 20 is input, the process is updated in S22. The hit / off random numbers and the hit symbol random numbers are extracted. After that, the error management process (S24), the electric accessory process (S25), the normal symbol process (S26) are performed, and the special symbol process (S27) is performed.

As shown in FIG. 16, when the special symbol process of S27 is started, as described above, first, it is determined whether or not the hit / off random number extracted in S23 is a hit random number "7" (S40). ), When the hit is a random number (S40; Yes), S2
Based on the hit symbol random number extracted in 2 and the hit symbol selection table 63 of FIG. 7, a specific symbol mode is selected (S41), and the process returns.

On the other hand, when the hit / outside random number extracted in S23 is an outlying random number (S40; No), the left out-of-design random number value, the right out-of-range random number value, and the middle out-of-range random number value updated in S11 are extracted ( S42), first, the left stop symbol is selected based on the left offset symbol random number extraction value and the left offset symbol selection table 65 of FIG. 8 (S43). Next, the difference value is selected based on the right deviation symbol random number extraction value and the right deviation symbol selection table 67 in FIG. 9, and the difference value is added to the left stop symbol selected in S42, and below the added value. The right stop design which is a one-digit numerical value is selected (S44).

Next, in the selection of the middle stop symbol in S45, if the left stop symbol and the right stop symbol are the same, that is, in the case of the reach state, the inside out symbol random number extraction value and FIG.
Select the difference value (becomes a value other than “± 0”) based on the reach out-of-reaching symbol selection table 69, add the difference value to the right stop symbol, and the last digit of the added value The intermediate stop symbol that becomes is selected. Further, when the left stop symbol and the right stop symbol are different, that is, when the reach state is not reached, the difference value is selected based on the out-of-center symbol random number extraction value and the non-reach in-out-edge symbol selection table 70 of FIG. Then
The difference value is added to the right stop symbol, and the middle stop symbol which is the last digit of the added value is selected.

When the selection of the stopped symbols in S45 is completed, the process returns, but as shown in FIG. 15, after this special symbol processing (S27), timer management / command creation processing (S
28), information output / error display command creation processing (S2
9), the command transmission process (S30) is performed, each register is restored (S31), the interrupt is permitted (S32),
To return.

When the power supply on the game hall side is shut off, or when a power failure occurs, a voltage abnormal signal from a power supply monitoring circuit (not shown) causes a top priority interrupt to the CPU, and FIG. The indicated backup process is started. In this backup process, first, all registers are saved (S50), the stack pointer is saved (S51),
The CTC is reset (S52). Next, for 210 msec, the detection of the left and right prize ball coefficient switch is monitored (S53),
When 210 msec has elapsed (S54; Yes), the backup confirmation flag is set (S55), and access to the RAM is prohibited (S56).

Now, as shown in FIG. 14, when the game hall side power is turned on, or when the power failure is restored,
This game control is started because power is supplied to the power supply board 45 from a state in which power is not supplied, and after execution of S1 to 4,
When the RAM clear signal is OFF (S5; No), it is determined whether the backup confirmation flag is ON (S6).
After the backup process of FIG. 17, since the backup confirmation flag is ON (S6; Yes), S1
2 and subsequent steps are executed.

That is, the stack pointer is restored (S1
2), error detection is performed and each sub-control board 40, 42,
A power failure recovery command is transmitted to 43 and 46 (S13),
Initial setting (S14) of CTC is performed. Next, all registers are restored (S15), the backup confirmation flag is cleared (S16), and interruption prohibition / permission is restored (S1).
After 7) is performed, it returns to the address before the power failure.

The operation and effect of this pachinko machine 1 will be described. The stop symbol selecting means 54 for selecting the kind of the stop symbol mode after the variation of the symbols displayed on the special symbol display portions 23a to 23c according to the determination result of the determining means 52 by lottery.
The stop symbol selecting means 54 is provided with a specific symbol aspect selecting means 60 for selecting a specific symbol aspect when the determination result is [hit], and a detaching symbol aspect when the determination result is [out] The detachment pattern mode selecting means 61 is provided.

The specific symbol mode selecting means 60 is the judging means 5
When the determination result by 2 is [hit], the type of the specific symbol mode to be displayed on the special symbol display portions 23a to 23c, the hit symbol random number extracted value extracted from the hit symbol random number generating means 62, and the hit symbol selection table 63, The total number of hit symbol random numbers 20 generated by the hit symbol random number generating means 62 is set to be larger than the number 10 of types of specific symbol modes.

Therefore, the selection rate for selecting at least one specific symbol mode among a plurality of types of specific symbol modes is made different from the selection rate for selecting a specific symbol mode other than the at least one, to give a bias. be able to. The at least one specific symbol mode is a specific symbol mode “777”
(Selection rate 6/20), or specific symbol mode "111" and "3"
33 ”,“ 555 ”and“ 999 ”(selection rate 1/20), or specific symbol modes“ 000 ”,“ 222 ”and“ 444 ”
And "666" and "888" (selection rate 2/20). Therefore, in the case where the player is provided with some advantageous state in accordance with the type of the specific symbol mode that has been established, it becomes possible to enhance the playability.

Moreover, since the total number of the hit symbol random numbers 20 generated by the hit symbol random number generating means 62 is set to be larger than the number 10 of the types of the specific symbol aspects, the specific odd symbol aspect "Y"
Even if YY ”(Y = 1, 3, 5, 7, or 9),“ 777 ”rather than“ 333 ”as in the present embodiment.
Is more easily selected, and a bias can be given. Further, for example, in the case of [hit], it is more difficult to select "777" than in "333", and in the case of [out], it is "3".
“7 × 7” can be selected more easily than “× 3”. In such a case, when two odd symbols 3 are in a reach state with “3 ↓ 3”, two odd symbols 7 When it is in the reach state all together, the jackpot reliability with "7 ↓ 7" can be made different (the jackpot reliability is higher when the two odd symbols 3 are all in the reach state).

Further, the removal symbol aspect selection means 61, when the determination result by the determination means 52 is [offset], the removal symbol aspect to be displayed on the special symbol display portions 23a to 23c, the left stop symbol and the right stop symbol, The type of the middle stop symbols, respectively, the left out symbol random number extraction value extracted from the left out symbol random number generating means 64 and the left out symbol design selection table 65, the right out symbol random number extracting value extracted from the right out symbol random number generating means 66, respectively. Right margin symbol selection table 67, middle margin symbol random number generation means 68
The selection is made based on the left out-of-design symbol random value extracted from and the out-of-center symbol selection tables 69 and 70.

Then, each outlier symbol random number generating means 64, 6
Since the total number of out-of-design symbol random numbers generated in 6, 68 is set to be larger than the number of types of stop symbols, it is possible to give a bias. In particular, in this embodiment, the ratio of the odd reach state and the even reach state in the case of [disconnection] is set to 5:15. In the case of [hit], the ratio between the odd reach state and the even reach state is set to 1: 1, so overall, the hit reliability in the odd reach state is It is possible to increase the hit reliability by about 3 times in the case of the even reach state.

Moreover, in the pachinko machine 1 with the probability variation function as in the present embodiment, the selection rate for selecting the stop symbol aspect can be biased, and the specific odd symbol aspect "YYY" (Y = 1, 3, 5, 7, or 9)
And the specific even symbol pattern “ZZZ” (Y = 0,
It is possible to variously set the ratio (probability variation ratio) when it becomes 2, 4, 6, or 8). In the present embodiment, the probability variation ratio is set to 1: 1 and, in that respect, the fairness regarding the probability variation is maintained.

When the right stop symbol for the left stop symbol and the middle stop symbol for the right stop symbol are determined and selected by the difference, for example, a symbol close to the left stop symbol is selected as the right stop symbol or the middle stop symbol. It is possible to make it easier to select and determine a mode close to the specific mode, and this also provides an effect of making the player have a premonition such as "may reach," and not getting tired.

Next, a modification will be described. 1] In the case of [hit], depending on the case, temporarily stop in a specific even symbol pattern, and then the left middle right symbol is re-flucted as a whole and the specific odd symbol aspect is definitely stopped. The present invention can be applied to a machine.

In this case, as shown in FIG.
(G) Specific even symbol pattern mode "ZZZ" (Z = 6 in the figure)
Is changed again after the temporary stop, and (d) the specific odd symbol pattern “YYY” (Y = 7 in the drawing) is set to 1/3. In the case of [hit], the odd reach state “Y ↓ Y” is finally set in order to make the ratio of the case of becoming the specific odd symbol pattern “YYY” and the case of becoming the specific even symbol pattern “ZZZ” 1: 1. It is necessary to make the ratio of 1: 3 and the even reach state “Z ↓ Z” 1: 3.

On the other hand, as shown in FIG. 18 (II), in the case of [disengagement], the ratio between the odd reach state “Y ↓ Y” and the even reach state “Z ↓ Z” is 5: 15
Is. Therefore, as shown in FIG. 19, when the odd reach state is “Y ↓ Y”, the ratio of [out] to 1 for [win] is 4 × 299 × 3/20 × 5/20 = Since it is 44.85, the hit reliability is about 1 / (1 + 44.85) = 1 / 45.85,
When the even reach state is "Z ↓ Z", the ratio of [out] is 4 x 299 x 3/20 x 15/2 for a ratio of 3 per [win]
Since 0 = 134.55, the hit reliability is about 3 / (3 + 134.55)
= 1 / 137.55 = 1 / 45.85.

In a conventional pachinko machine with a re-changing function,
The hit reliability in the even reach state was considerably higher than the hit reliability in the odd reach state, but according to the present invention, in the case of [out], the odd reach state ""Y ↓ Y" and even reach state "Z
By changing the ratio in the case of "↓ Z", it is possible to correct the bias of the hit expectation degree due to the difference in the reach state.

2] The display means 23 and the special symbol control means 81 may be constituted so as to change and stop a plurality of kinds of special symbols in four or more symbol display portions, respectively, or two symbol display portions, further. May be configured to change and stop a plurality of types of special symbols on one display unit, and the stop symbol selecting means 54 may be configured to select the stop symbol mode displayed there by lottery.

3] The types of symbols displayed on each display unit can be set variously, and the number thereof can also be set variously. However, the number of types of symbols is smaller than the total number of symbol random numbers generated by the random number generating means. 4] In the lottery means 51 and the determination means 52, not only the hit / miss, but also in the case of the miss, the lottery determination is made as to whether or not the reach state is established. In the case of the reach state, any one of a plurality of types of reach / disengagement modes may be selected, and in the case of not reaching the reach state, one of a plurality of types of no reach / disengagement modes may be selected.

5] Depending on the game state and the time zone, at least one stop symbol mode (stop symbol) of a plurality of types of stop symbol modes (stop symbol) may be selected to change the selection rate. Good. In this case, it can be realized by providing a plurality of selection tables and configuring any one of the selection tables according to the gaming state or the time zone. For example, during probability fluctuation, a table having a lower selectivity in the reach state than that in the normal state (the selectivity in the reach state is 0) may be adopted. During the probability change, the next big hit is confirmed, so it is effective in making it difficult to perform the out-reach effect (preventing the out-reach effect).

Further, the table may be different depending on the number of reserved balls. For example, a table may be adopted in which, when the number of retained balls is large, the reach selection rate is low.
Further, the number of times the symbol is changed or the number of times a predetermined stop symbol mode (reach state) is reached may be counted, and the table may be changed based on the counted value. For example, a table may be adopted in which the reach state is surely established every predetermined number of symbol variations. In addition, fluctuation pattern (including information on fluctuation time)
The table may be different depending on the type. In this case, it can be realized by configuring the fluctuation pattern and then determining the table.

6] Concerning the configurations of the hit symbol selection table 63 and the out symbol design tables 65, 67, 69, 70,
Various changes can be made by changing the selection rate for selecting each symbol, which makes it possible to provide pachinko machines with different specifications. 7] The stop symbol selecting means may be provided in the display control means.
In this case, the stop symbol selection means will select the stop symbol based on the command signal relating to the stop symbol selection transmitted from the main control means to the display control means. Commands related to the stop symbol selection, for example, hit (probability fluctuation big hit, normal big hit), out (reach with out, out,
It is a command that includes information such as "reach out". still,
When determining the table after setting the variation pattern, the command relating to the stop symbol selection includes a command including the information of the variation pattern.

8] It should be noted that various modifications may be added and implemented without departing from the spirit of the present invention, and pachinko machines other than the first type, second type pachinko machines, and third type. The present invention can be applied to various ball game machines, such as pachinko machines and arrangement ball machines other than pachinko machines.

[0099]

As described above, according to the ball game machine of the present application, the selection rate for selecting at least one first stop symbol mode among a plurality of types of stop symbol modes, other than the at least one The second stop symbol mode is made different from the selection rate for selection, and a bias is given, which makes it possible to greatly enhance the game playability.

[Brief description of drawings]

FIG. 1 is a perspective view of a pachinko machine according to an embodiment of the present invention.

FIG. 2 is a side view of a pachinko machine.

FIG. 3 is a rear view of the pachinko machine.

FIG. 4 is a front view of a game board of the pachinko machine.

FIG. 5 is a functional block diagram of a control system of the pachinko machine.

FIG. 6 is a detailed functional block diagram of a stop symbol selecting means.

FIG. 7 is a chart showing a winning symbol selection table.

FIG. 8 is a diagram showing a left-off symbol design selection table.

FIG. 9 is a diagram showing a right out-of-right symbol selection table.

FIG. 10 is a diagram showing a medium edge symbol selection table.

FIG. 11 is a diagram showing symbol fluctuation / stop in the case of [hit].

FIG. 12 is a diagram showing a symbol variation / stop when a reach state is set by [disengagement].

FIG. 13 is a chart showing hitting reliability and the like which differ depending on the reach state.

FIG. 14 is a flowchart [1/4] of game control.

FIG. 15 is a flowchart [2/4] of game control.

FIG. 16 is a flowchart [3/4] of game control.

FIG. 17 is a flowchart [4/4] of game control.

FIG. 18: Symbol variation / in the case of [hit] according to a modification /
It is a figure which shows a stop.

FIG. 19 is a diagram showing a symbol variation / stop when a reach state is set due to [disengagement] according to a modification.

FIG. 20 is a diagram showing symbol fluctuation / stoppage according to a conventional technique, in which (a) shows a case of “hit” and (b) shows a case of “removed” and a reach state is obtained.

FIG. 21 is a diagram showing a symbol variation / stop of [hit] in a model having a re-variation function according to a conventional technique.

[Explanation of symbols]

1 Pachinko machine 23a-23c special symbol display section 51 Lottery means 52 determination means 53 Special game generation means 81 Special symbol control means 62 per random number generation means 63 per symbol selection table 64 Left off random number generation means 65 Off-left symbol selection table 66 Right-off random number generation means 67 Off-right symbol selection table 68 Outlier random number generation means 69 Outer Design Selection Table for Reach 70 Non-reach medium edge pattern selection table

Claims (5)

[Claims] 1. One or more symbol display portions (23a, 23b, 23c)
The symbol display means (23a, 23b, 23c, 81) for changing and displaying a plurality of types of symbols respectively, and the variation of the symbols displayed by this symbol display means (23a, 23b, 23c, 81) Special game generation means for generating a special game advantageous to the player when the later stop symbol mode becomes a preset specific symbol mode
In a ball game machine equipped with (53) and lottery determination means (51, 52) for determining whether or not to activate this special game generation means (53), a stop for selecting the type of the stop symbol mode Symbol selection means (5
4) is provided, and the stop symbol selecting means (54) selects the stop symbol mode according to the determination result of the lottery determining means (51, 52), at least the first stop symbol mode and the second stop symbol mode. Including, the stop symbol selection means (54), the selection rate for selecting the first stop symbol mode and the selection rate for selecting the second stop symbol mode are different, the ball game machine. 2. The stop symbol selection means (54), when the lottery determination means (51, 52) determines to activate the special game generation means (53), the symbol display means (23a, 23b) ,twenty three
c, 81), the type of the specific symbol mode to be displayed is configured to be selected based on the hit symbol random number extracted value and the hit symbol selection table (63) extracted from the hit symbol random number generation means (62), 2. The ball game machine according to claim 1, wherein the total number of hit symbol random numbers generated by the hit symbol random number generation means (62) is set to be larger than the number of types of the specific symbol aspect. 3. The symbol display means (23a, 23b) when the stop symbol selection means (54) determines that the lottery determination means (51, 52) does not activate the special game generation means (53). , 2
3c, 81) at least one stop symbol type included in the out-of-drawing symbol mode, out-of-symbol random number generating means (64, 6)
6,68) is configured to select based on the outlier symbol random number extracted value and the outlier symbol selection table (65,67,69,70), and the outlier random number generating means (64,66,68) The ball game machine according to claim 1 or 2, wherein the total number of out-of-design random numbers to be generated in is set to be larger than the number of types of the stop symbols. 4. The symbol display means (23a, 23b, 23c, 81),
The two or more symbol display sections (23a, 23b, 23c) are each configured to display a plurality of types of symbols, and the stop symbol selection means (54) is the lottery determination means (51, 5).
When 2) determines that the special game generation means (53) is not activated, the type of the first stop symbol included in the out-of-symbol pattern mode displayed by the symbol display means (23a, 23b, 23c, 81) is predetermined. While selecting based on the control of, the type of the second stop symbol included in the deviation symbol mode, the deviation symbol random number extraction value and the second deviation symbol selection table extracted from the second deviation symbol random number generation means (66/68) Based on (67 / 69,70) and configured to select by performing a predetermined arithmetic processing for the first stop symbol, the second deviation symbol random number generation means (66/68) generated disengagement The ball game machine according to any one of claims 1 to 3, wherein the total number of symbol random numbers is set to be larger than the number of types of second stop symbols. 5. The second off-design symbol selection table (69, 70)
Is composed of a plurality of selection tables (69, 70), the stop symbol selection means (54) adopts the selection table (69/70) in relation to the first stop symbol to select the second stop symbol. The ball game machine according to claim 4, characterized in that.