JP2003093599A - Game machine, program and recoding medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow players to feel higher expectations for the AT mode. SOLUTION: When loss or win of the cherry occurs by electronic lottery in the normal mode, an AT mode control part 50 actuates an AT mode lottery part 51. The AT mode lottery part 51 collates random number values sampled with a high probability table 52 or a low probability table 53 to determine whether or not the right for shifting to the AT mode should be granted. When a table change role is won by the electronic lottery, the AT mode lottery part 51 carries out the lottery using the high probability table 52. The lottery on the high probability table 52 makes players feel higher expectations for the AT mode.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gaming machine installed and used in a game hall such as a pachinko parlor.

[0002]

2. Description of the Related Art A slot machine installed and used in a game hall such as a pachinko parlor is called a pachi-slot machine, and a medal, which is a game medium, is given a certain value and won by playing a game. You can exchange medals for various prizes. Therefore, the player generally attempts to play the game by only selecting a platform that is easy to obtain the right to shift to the bonus game mode for the purpose of obtaining a large number of medals. The bonus game modes include, for example, a big bonus (BB) mode and a regular bonus (RB) mode. Especially, the BB mode is RB mode.
Since the mode is changed to the predetermined number of times and the mode is changed to the RB introduction mode in which the winning probability of the small winning combination is increased before the mode is changed to the RB mode, a large number of medals can be acquired in a short period of time.

It should be noted that, in the present specification, a pachi-slot machine is used as an example for explanation, and therefore, explanation will be made using medals as a game medium, but the game medium also includes other media such as coins and pachinko balls. In addition, "inserting a medal (game medium)" includes betting a credited medal with a bet button or the like, in addition to actually inserting the medal into the medal insertion slot. Further, a state in which the winning symbols are arranged on the winning effective line is a prize, and a state in which a winning combination is drawn by electronic lottery before the winning is an internal prize.

It is an important factor to attract a player to a slot machine to have the expectation that a large number of medals can be obtained in a short period of time, and in recent years, a large number of medals can be expected in addition to the bonus game mode. There are many models that have been devised in various ways, such as by providing a game mode, to encourage the players' ambition. As one of the game modes, an assist time (AT) mode is known in which an assist display that prompts the player to operate a stop button is displayed. In the AT mode, for example, a sub reel provided separately from the three reels, a liquid crystal panel, or the like displays the symbols to be stopped on the winning effective line, the operation order of the stop buttons, and the like. When the player operates the stop button in accordance with this display, it becomes easy to win the small winning combination having the internal winning, and thus it is easy to increase the medals in the AT mode.

As a model provided with the AT mode, for example, there is one that is switched to the AT mode after the BB mode is completed. Then, a predetermined number of games are played in the AT mode, or an electronic lottery for determining a winning combination is performed to obtain BB or R.
If B is won, the AT mode is ended. In such a model, the BB mode is continuously switched to the AT mode, so that the player can obtain a large number of medals in a short period of time. Therefore, the model provided with the AT mode can stimulate the player's motivation to obtain the medals and enhance the interest in the game.

[0006]

In the above slot machine, since the transition to the AT mode is performed only after the BB mode ends, the right to transition to the AT mode cannot be obtained unless the BB is won. Therefore, the probability of transitioning to the AT mode is substantially the probability of winning the BB, but the BB is randomly selected with a certain probability, and the winning probability is set so that the BB rarely wins. Since most of them are played, the player's expectation for the AT mode is reduced. Furthermore, since there is no transition from the normal mode to the AT mode, the expectation for the AT mode cannot be obtained during the normal mode. For these reasons, there has been a problem that the model provided with the AT mode lacks the interest in the game.

In order to solve the above problems, the present invention provides a gaming machine, a program, and a recording medium which can enhance the player's expectation for the AT mode and can bring interest to the game. The purpose is to

[0008]

In order to achieve the above object, a gaming machine of the present invention has a reel in which a plurality of types of patterns are arranged on the outer periphery and which rotates in response to a game start operation,
It is provided with a winning combination determining means for determining one of a loss and a plurality of types of winning combinations by lottery, a game in the normal mode and a game in the special mode are selectively performed, and in the game in the special mode, In the gaming machine, until the predetermined end condition is satisfied, an assist display is displayed to prompt the player to stop the reel so that the winning combination determined by the winning combination determining means can be easily obtained. Special mode right giving lottery means for deciding whether or not to grant the right to shift to the special mode by lottery in response to the special mode lottery or loss being decided by the role determining means, and the special mode right Used in the granted lottery means,
A plurality of types of probability tables having different right grant probabilities, and a table for switching the probability tables used by the special mode right grant lottery means in response to the table switching combination or loss being determined by the winning combination determining means. Switching means is provided, and the probability of granting the right to shift to the special mode is changed by the table switching means.

At least one of the plurality of types of winning combinations is defined as a special mode transition combination that gives the right to transition to the special mode, and the special combination transition combination is determined by the winning combination determining means, When the right to shift to the mode is obtained, it is preferable that the table switching unit switches to a probability table that determines only the number of shifts to the special mode.

Further, in the plural types of probability tables,
Random values are grouped so that they are different from each other,
The random number group in each probability table is divided into a group that does not grant the right and a group that grants the right, and the group that grants the right is assigned the number of transitions to the special mode. It is preferably composed of a plurality of groups.

Further, it is preferable that the random number values are grouped so that the number of transitions tends to increase as the right-granting probability increases.

In addition, at least one of the plurality of types of winning combinations is won by the winning combination determining means, and if the lottery performed after this winning is won a predetermined number of times, the probability of granting the right to shift to the special mode is increased. An integration determining means for determining whether or not to accumulate the number of times of winning the transition probability varying hands in response to the transition probability varying combinations being won by the winning combination determining means. And a winning number storing means for storing the number of times of winning in the lottery by the totalizing determining means, and the table switching means responds to the fact that the cumulative number of times stored in the winning number storing means reaches the predetermined number. Then, it is preferable to switch the probability table.

If it is decided to grant the right to shift to the special mode, in the next and subsequent games,
It is preferable to provide special mode transition lottery means for determining whether or not to shift from the normal mode to the special mode by lottery.

Further, the special mode end condition is that the number of games played under the special mode reaches a predetermined number, and the special mode transition lottery means sets the number of times of the final game under the special mode to It is preferable to perform the lottery using a probability table having a higher probability of transition to the special mode than a probability table used in a game other than the final game.

It should be noted that the program to be used is in response to the winning combination determining means for determining a loss and one of a plurality of types of winning combinations by lottery, and the special mode drawing combination or losing being determined by the winning combination determining means. In response to the special mode right granting lottery means for deciding whether to grant the right to shift to the special mode by lottery, and the table switching combination or loss being determined by the winning combination determining means,
This is for causing the computer of the gaming machine to function as table switching means for switching the probability table used in the special mode right granting lottery means.

The recording medium to be used is a computer-readable medium in which the program according to the eighth aspect is recorded.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a slot machine 10 is provided with three modes: a normal mode, a BB mode, and an AT mode as a special mode. The end condition of the BB mode is that the RB introduction game is executed three times or 30 times before the RB mode is transferred to the RB mode. AT mode is 18
The end condition is that the game is played once.

In the slot machine 10, four display windows 13 are provided on a front door 12 of a housing 11, and each display window 13 is provided.
A first reel 14a, a second reel 14b, a third reel 14c, and a sub reel 15 are rotatably incorporated in the inner part of the disk. As is well known, the first to third reels 14a to 14c
A plurality of types of patterns are arrayed at a constant pitch on the outer periphery of, and three patterns per reel can be observed through the display window 13 when the reels are stopped. As a result, a total of 5 linear winning pay lines in which the patterns of the respective reels are combined one by one and three diagonally by two are set.

The medal slot 16 prior to the start of the game
When one medal is thrown from, one horizontal winning line is activated in the center, and two horizontal lines, three horizontal lines and three diagonal lines, two diagonal lines are activated. . Further, it is possible to credit (store) up to 50 medals, and the number of credited medals is displayed by the credit indicator 17. It is to be noted that, for example, four reels can be observed from the display window 13 per reel, and in addition to the four horizontal winning lines, another reel that is bent to combine one reel for each reel It is also possible to set an effective line.

The sub reel 15 at the right end starts rotating together with the other reels 14a to 14c when the start lever 18 is operated in the AT mode game. Sub reel 1
Reference numeral 5 indicates an assist display to the player, and a plurality of types of small winning patterns are arranged. Then, when a small winning combination is won in the electronic lottery at the start of the game, the sub reels 15 are stopped at the positions where the winning small winning combination winning symbols are displayed.

By operating these stop buttons 19a to 19c, the first to third stop buttons corresponding to the respective buttons are operated.
The reels 14a to 14c are individually stopped. Various operation buttons such as a 1 bet button, a MAX bet button, and a payout button, which are operated when a game is played with a medal credited, are provided on the operation panel above the stop buttons 19a to 19c. Since the functions of these operation buttons are well known, their details are omitted.

A medal tray 20 is provided below the front door 12, and a payout medal obtained when a prize is won in a game is paid out from the payout opening 21 to the medal tray 20.

A chance meter 22 is provided above the front door 12.
Is provided. The chance meter 22 is composed of seven display windows and LEDs incorporated in the back of each display window. Each LED wins a watermelon that is a transition probability variation in the electronic lottery at the start of the game, and one LED is lit each time the lottery performed after this win is won, and all seven LEDs are illuminated. As will be described later in detail when turned on, the probability of granting the right to shift to the AT mode is high. Note that the number of display windows forming the chance meter 22 may be appropriately set.

As shown in FIG. 2, the operation of the slot machine 10 is basically controlled by a microcomputer including a CPU 30 and a memory 31. In addition to the control unit 30a, the CPU 30 is provided with an inserted medal counter 33, an electronic lottery unit 41, and a winning combination determination unit 42, which will be described later. The medal sensor 32 detects an appropriate medal inserted from the medal insertion slot 16 and inputs it to the control unit 30a. A selector is incorporated in the rear of the medal insertion slot 16, and improper medals are ejected to the medal tray 20. In addition, the medal sensor 32 can also be used by the selector when a medal is inserted at an improper timing, for example, a medal inserted during the game or while various operation buttons are being pressed.
It is discharged to the medal tray 20 without passing through.

Since the number of medals to be inserted prior to the start of the game is limited to one to three, the medal sensor 32 also detects medals inserted after the fourth when the credit function is not used. It is discharged to the medal tray 20 without being played. The credit function is switched on / off for each push of the payout button.

Then, when the credit function is turned on, the medals inserted after the fourth one are also in the medal sensor 32.
It is detected in and is credited to the inside of the slot machine with a limit of 50 cards. The number of credited medals is digitally displayed on the credit number display. When using the credit function, the 1 bet button and MA
The X bet button is operated to insert a medal, and the bet number is sequentially subtracted from the credit number. In addition, when a winning is obtained as a result of the game, the payout medal is also credited, and the credited medal is paid out to the tray 20 when the payout button is operated.

The control unit 30a determines the number of medals inserted from 1 to 3 prior to the start of the game by the medal sensor 32.
Based on the detection signal from, the number of activated winning lines is determined. The bet number of medals thrown at each start of the game is calculated by the throwing medal counter 3
3 is added up and counted. The number of credits is counted by another credit medal counter (not shown).

The start signal generator 34 inputs a game start signal to the controller 30a when the start lever 18 is operated after one to three medals have been inserted. In response to the game start signal, the control unit 30a causes the memory 31
The first to third reels 14a to 14c are rotated based on the game execution program stored in the ROM area, and the game process is started. Further, in the game in which the assist display is performed, the sub reel 15 is also rotated at the same time when the first to third reels 14a to 14c are rotated.

The reel drive controller 35 controls the driving and stopping of each reel. Each reel is fixed to the drive shaft of each individual stepping motor 36a to 36d, and each reel is controlled by controlling the drive of each stepping motor 36a to 36d. The RAM area of the memory 31 is a working area, and is used for temporary storage and rewriting of flags and data used for each game.

Since the stepping motors 36a to 36d rotate at a rotation angle corresponding to the number of supplied drive pulses, the control unit 30a controls the number of supplied drive pulses to control the first to third reels 14a to 14c and the reels 14a to 14c. The rotation angle of the sub reel 15 can be controlled, and the stop position of the reel can be determined by cutting off the supply of the drive pulse. Further, each reel is integrally formed with reflection signal portions 37a to 37d at its reference position, and the photosensors 38a to 38d photoelectrically detect the passage of each reflection signal portion every one rotation thereof. Photosensors 38a-3
The detection signal from 8d is input to the control unit 30a as a reset signal for each reel.

The stepping motor 3 is installed in the control unit 30a.
A pulse counter is provided for each of 6a to 36d and counts the number of drive pulses supplied to each stepping motor 36a to 36d. Then, the reset signal generator 3
When the reset signal is input from 9, the count value of the corresponding pulse counter is cleared. Therefore, the number of drive pulses corresponding to the rotation angle within one rotation of each reel is sequentially updated and stored in each pulse counter.

A picture table is stored in the ROM area of the memory 31. The picture table stores the number of drive pulses corresponding to the rotation angle of each reel from the reference position and each picture arranged on the reel at a constant pitch. Is associated with the picture code representing. Therefore, by monitoring the count value of the pulse counter for each reel, it is possible to identify, for example, which pattern is moving on the winning line in the center, and how much more the reel is rotated. It is possible to predict whether the target pattern will move to the winning effective line.

The stop signal generator 40 inputs a stop signal for each reel to the controller 30a when the stop buttons 19a to 19c are operated. Start lever 1
When all the reels start rotating by operating 8, and when these rotations reach the steady speed, the stop buttons 19a to 19c
The operation of is enabled. After that, by operating these, the corresponding first to third reels 14a to 14a
The stop control of 4c is started. It should be noted that when a plurality of stop buttons are operated, only the reel with the earlier timing is stopped, and when completely simultaneously operated, none of the reels is stopped.

The control section 30a receives the game start signal and operates the electronic lottery section 41. The electronic lottery section 41 includes a random number generator and a random value sampling circuit, and randomly selects one random value each time the game is started. The randomly selected random number value is input to the winning combination determination unit 42. The winning combination determining unit 42 determines what kind of winning combination will be given in the currently executed game according to the input value. In this way, the electronic lottery section 41 and the winning combination determining section 42 function as winning combination determining means.

The winning combination determining section 42 is provided with a plurality of winning tables in which random numbers are divided into groups according to their sizes. In the first winning table, the random number values sampled in the game in the normal mode are BBs that give the right to shift to the BB mode, small wins corresponding to the small win winning symbols that only pay out a predetermined number of medals, and medals. It is used for determining which of the symbols, such as a replay that gives the right to play the next game with the same number of bets without throwing, a loss that does not cause any hits, that is, a winning determination. It should be noted that there are a plurality of types of small winning symbols, and a payout medal is assigned to each of them. Then, the type of winning and the design are determined depending on which winning design the sampled random number value belongs to. Also, this first
In addition to the winning table, a winning table used in the BB mode is provided. A winning combination determination signal indicating the type of winning combination determined by the winning combination determining unit 42 is input to the control unit 30a.

The integration lottery section 43 functions as integration determination means, and includes a random number generator, a random number sampling circuit, and a probability table. The cumulative lottery unit 43 is activated when the winning combination determination unit 42 determines a watermelon, and determines by lottery whether or not to accumulate the number of times the watermelon is won. When the lottery by the cumulative lottery section 43 is won, the winning signal is input to the control section 30a. In response to this, the control unit 30a writes in the RAM area of the memory 31. As a result, the memory 31 functions as a winning number storage means.

The LED control section 44 uses the chance meter 22.
LEDs 22a, 2 incorporated in the back of each display window of
2b. ． ． The lighting control of 22 g is performed via the driver 45. When the winning combination determination unit 42 determines the watermelon and further wins the lottery by the integrated lottery unit 43, the control unit 30a activates the LED control unit 44 to light one extinguished LED.

The AT mode execution unit 46 determines the number of times of switching to the AT mode and whether to switch to the AT mode. As shown in FIG. 3, the AT mode execution unit 46
It is controlled by the T mode control unit 50. When the winning combination determination unit 42 determines the type or loss of the winning combination, a winning combination determination signal is input from the control unit 30a to the AT mode control unit 50. The AT mode control unit 50 activates the AT mode lottery unit 51 when the winning combination determination unit 42 determines that the player is a loser or a cherry that is a special mode lottery. In addition, B
The AT mode lottery section 51 is not operated during the B mode.

The AT mode lottery section 51 is provided with a random number generator and a random number sampling circuit, and collates the sampled random number value with the high probability table 52 or the low probability table 53. As will be described later in detail, the high probability table 52
The low probability table 53 is switched to the low probability table 53 when the winning combination determining unit 42 determines the table switching combination of cherry and BB. In the high-probability table 52 and the low-probability table 53, the random number values are grouped so that the AT mode transition probability and the lottery probability for each AT mode transition count are different from each other. As a result, whether to grant the right to switch to the AT mode is determined, and
When shifting to the AT mode, the number of times to shift to the AT mode is determined. In the high probability table 52, random number values are grouped so that the random number group having a larger number of transitions becomes larger than in the low probability table 53, and when the lottery using the high probability table 52 is won, the AT mode is continuously changed. It will be easier. As a result, the AT mode control unit 50 and the AT mode lottery unit 51 function as table switching means and special mode right granting lottery means.

The AT number determination table 54 is used when only the number of transitions to the AT mode is assigned to the random value group and the winning combination determination unit 42 determines the bell as the special mode transition combination. The random number values in the AT number determination table 54 are grouped so that the selection probability of the number of transitions to the AT mode is the same as that in the high probability table 52.

When it is decided to grant the right to shift to the AT mode, the determined number of shifts to the AT mode is written in the AT control memory 55. The AT mode transition lottery section 56 functions as a special mode transition lottery means, and includes a random number generator and a random number sampling circuit. The AT mode transfer lottery section 56 is operated when the AT mode lottery section 51 determines to grant the right to transfer to the AT mode, and the low probability table 57 is used to determine whether or not to transfer to the AT mode from the next game. Alternatively, it is determined by lottery using the high probability table 58. The low probability table 57 is used in the game in the normal mode. The high probability table 58 is used when the right to shift to the AT mode a plurality of times is given, for example, when the 18th game is played in the AT mode. In other words, if the right to switch to the AT mode is given multiple times, A
From the 18th game, which is the final game in the T mode, a lottery is performed by the AT mode transition lottery section 56 each time the game is performed, and the final game in the AT mode has a high winning probability. As a result, when the right to shift to the AT mode is given more than once, the AT mode can be easily started continuously. When it is decided to shift to the AT mode, the AT mode control unit 50 causes the control unit 30a to send the AT
A transition signal is input.

The medal hopper 60 pays out a specified number of payout medals to the medal tray 20 according to the type of winning combination, or adds the specified number to the credit counter. A payout table in which the number of payout medals is determined for each type of winning combination is stored in the ROM area of the memory 31, and the control unit 30a reads this and drives the medal hopper 60.

Next, the operation of the slot machine configured as described above will be described. As shown in FIG. 4, first, when 1 to 3 medals are inserted prior to the start of the game in the normal mode, the inserted medal counter 33 counts the number of inserted medals. Thereafter, when a game start operation is performed by the start lever 18, a game start signal is input to the control unit 30a, and the first to third reels 14a to 14c are simultaneously rotated.

At the same time, the electronic lottery section 41 samples a random number, and collates the value with the first winning table of the winning combination determining section 42 to determine the type of loss or winning combination.
When the winning combination determining unit 42 determines the loss or the type of winning combination, the winning combination determining signal is fed back to the control unit 30a. Further, the winning combination determination signal is transmitted from the control unit 30a to the AT.
It is input to the mode control unit 50.

When the winning combination determining unit 42 determines the loss or the cherry, the AT mode control unit 50 operates the AT mode lottery unit 51. In the AT mode lottery section 51, a random number value is sampled, and the random number value is collated with the high probability table 52 or the low probability table 53 to determine whether to grant the right to shift to the AT mode.
A lottery will be held.

When the right to shift to the AT mode is given in the AT lottery, the number of times to shift to the AT mode is also determined at the same time. The determined number of transitions to the AT mode is written in the AT mode control memory 55.

When the winning combination determination section 42 determines the bell, the AT mode lottery section 51 collates the sampled random number value with the AT number determination table 54 to determine only the number of transitions to the AT mode. Be seen. Then, the determined number of transitions to the AT mode depends on the AT mode control memory 5
Written to 5. That is, when the winning combination determination unit 42 determines the bell, the right to shift to the AT mode is obtained.

As shown in FIG. 5, the AT lottery has a high probability AT.
It is performed under two types of modes, a lottery mode and a low probability AT lottery mode. The high-probability AT lottery mode uses the high-probability table 52, and the low-probability AT lottery mode uses the low-probability table 53 to perform AT lottery. The transition from the low-probability lottery mode to the high-probability AT lottery mode is performed when the winning combination determination section 42 determines the table switching combination. Cherry and B are used for this table switching role.
If B is present and cherry is determined, the high-probability AT lottery mode is set for 100 games from the next game. When BB is decided, 1 after the BB mode ends
The 00 game is set to the high-probability AT lottery mode.

When a watermelon is determined by the winning combination determination section 42 and the lottery by the cumulative lottery section 43 is won,
The control unit 30a operates the LED control unit 44. LED
The control unit 44 controls the LEDs 22 a, 22 via the driver 45.
b. ． ． Lighting control of 22 g is performed, and every time the lottery in the cumulative lottery section 43 is won, the chance meter 22 is increased by one. At the same time, the cumulative number of times of winning in the lottery in the cumulative lottery section 43 is written in the RAM area of the memory 31. At this time, the number of integrations written in the memory 31 is 7, and all the LEDs 22a, 22b. ． ． When 22g is turned on, the control unit 30a sends the AT mode control unit 5
An AT high probability signal is input to 0. As a result, the high probability AT lottery mode is set for 100 games from the next game, and the AT mode control unit 50 causes the AT mode lottery unit 51 to perform the lottery using the high probability table 52. When the number of times data is written in the memory 31 reaches 7,
This is read and the number of times it is written in the memory 31 is cleared. In addition, the LEDs 22a, 22
b. ． ． All 22g are turned off.

If the winning combination determining unit 42 determines that the winning or other winning combination is determined, the high probability AT lottery mode is not changed and the low probability AT lottery mode is continuously set. A lottery will be held. In this way, the probability of transition to the AT mode changes depending on the winning combination determined by the winning combination determining section 42, so that the player has a sense of tension in the normal mode game, and the high probability mode. When the AT lottery is performed in, the player's expectation for the AT mode is increased.

As shown in FIG. 4, when the right to shift to the AT mode is granted, the AT mode shift lottery section 56 is activated. In the AT mode transition lottery section 56, random numbers are sampled, and by the lottery using the low probability table 57, it is determined whether or not to shift to the AT mode from the next game. This lottery is performed each time the game is started until it is decided to shift to the AT mode.
When it is decided to shift to the AT mode, the next game shifts to the AT mode. Further, the number of transitions to the AT mode written in the AT mode control memory 55 is decremented by "1".

In the AT mode game, when the game start operation is performed, the sub reel 15 is rotated together with the first to third reels 14a to 14c. When the winning combination determination section 42 determines the small winning combination, the sub reel 15 is stopped at a position where the winning small winning combination winning design is displayed. Sub reel 15
When is stopped, the stop buttons 19a to 19c are activated. The player operates the stop buttons 19a to 19c at a timing so that the winning combination winning design which is assist-displayed on the sub reel 15 is stopped on the winning effective line and the winning is obtained. When a small win with an internal prize is won by the player's stop operation, the medal hopper 4
8 is actuated, and the number of payout medals corresponding to the type of the winning combination winning pattern is paid out. When the replay or loss is determined by the winning combination determination unit 42, the sub reel 15 is stopped at a position where nothing is displayed, and the game processing corresponding to each is performed.

The number of games played in the AT mode is counted up by the controller 30a, and the RA of the memory 31 is counted.
It is written in the M area. Also, the number of small wins in the AT mode game is counted up, and the memory 31
Is written to the RAM area. Then, when the number of games played in the AT mode reaches 18, the AT mode once ends.

In the 18th game in AT mode, A
The T mode control unit 50 reads the number of transitions to the AT mode written in the AT control memory 55. AT
When the number of remaining transfers written in the control memory 55 is "1" or more, the number of writes written is subtracted by "1", and the AT mode transfer lottery section 56 is operated to return to the AT mode again. A lottery is conducted to decide whether or not to transfer. At this time, since the lottery using the high probability table 58 is performed in the 18th game in the AT mode, the AT mode can be easily started continuously. 18 in AT mode
When it is not decided to shift to the AT mode in the second game, a lottery is performed using the low probability table 57 in the subsequent games in the normal mode. The number of remaining transfers written in the AT control memory 55 is “0”.
If it is, the AT mode transition lottery section 56 is not operated, and the transition game is subjected to normal game processing.

In FIG. 6, a recording medium (CD, flexible disk, IC memory, MO, etc.) 60 is installed in the slot machine 10.
The example shown in the flowchart of FIG. 4 is installed in the CPU 30 in the recording medium 60.
A program to be realized by the computer 61 including the memory 31 and the memory 31 is stored. In this case, for example, a program for realizing the winning combination determining means, the special mode right granting lottery means, and the table switching means by the computer 61 is recorded in the recording medium 60. Then, this recording medium 60
Is loaded into the reading device 62, and the program is installed in the slot machine 10.

The program can be distributed to the slot machine 10 using the Internet instead of being installed via the recording medium 60. Also, the distributed program of the present invention or the recording medium 60.
It is also possible to install the program of the present invention read out from the computer into a personal computer and play a slot machine game on the monitor.

In the above embodiment, the end condition of the AT mode is that the number of games played in the AT mode reaches 18 times. However, in the AT mode, for example, a small winning combination is won a predetermined number of times. The termination condition may be set appropriately.

In the above embodiment, the AT lottery is performed when the winning combination determining section 42 determines cherry or lose. However, when an appropriate winning combination is determined, A
A T lottery may be conducted. Although the right to shift to the AT mode is obtained when the winning combination determination unit 42 determines the bell, the right to shift to the AT mode is also obtained when an appropriate winning combination is determined. You may do it. In addition, if you win the watermelon and win 7 times in the lottery after this win, the low probability AT lottery mode will be switched to the high probability AT lottery mode, but in this case as well You may

In the above embodiment, the high-probability AT lottery mode and the low-probability AT lottery mode are provided, and the high-probability table 52 is provided.
While the AT lottery is performed with two types of lottery probabilities using the low probability table 53 and the low probability table 53, the AT lottery may be performed with appropriate types of lottery probabilities. Further, the high probability table 52 and the low probability table 53 are different in the AT mode transition probability and the lottery probability for each AT mode transition count, but the AT mode transition probability and the transition count are different for each table. And may be different from each other.

In the above embodiment, the conditions for shifting from the low-probability AT lottery mode to the high-probability AT lottery mode are that cherry is won, BB is won, and all chance meters are lit. The conditions may be changed under appropriate conditions such as when another winning combination is won or when the payout rate is changed. Further, the number of games that can be played in the high-probability AT lottery mode is 100, but the number of games may be any number.

In the above embodiment, in the AT mode game, the small winning combination notified by the sub reel 15 is selected from a plurality of types of small winning combinations to win the prize. However, for example, a specific small winning prize is internally won. In this case, the stop buttons 19a to 19c are set to be won only when they are operated in a predetermined order, and in the AT mode game, the operation order of the stop buttons 19a to 19c is displayed. The mode of the game in the AT mode may be an appropriate mode.

In the above embodiment, only the BB mode is provided as the bonus game mode, but an appropriate mode such as the RB mode may be provided in addition to this.

The present invention is not limited to a reel drive type slot machine, but a video type slot machine,
It is equally applicable to pachinko machines. Further, as in the above-described embodiment, the winning line is three horizontal lines,
The present invention is not limited to a game machine in which two diagonal lines are set for a total of five, and the present invention can be applied to a game machine having another number of winning effective lines.

[0064]

As described above, according to the present invention, whether or not the right to shift to the special mode is given in response to the fact that the winning combination determining means determines the special mode lottery or loss. A special mode right granting lottery means determined by a lottery and a plurality of types of probability tables used in the special mode right granting lottery means and having different right grant probabilities, and a winning combination determining means determines a table switching role or a loss In response to this, a table switching unit for switching the probability table used in the special mode right granting lottery unit is provided, and the table switching unit changes the grant probability of the right to shift to the special mode. Therefore, the player will be tense to play the game in the normal mode, and if the probability of winning the AT lottery is high, the AT Since increases the expectations for over de, it is possible to make prime the interest of the player's game.

[Brief description of drawings]

FIG. 1 is an external view of a slot machine using the present invention.

FIG. 2 is a functional block diagram showing an electrical schematic configuration of the slot machine shown in FIG.

FIG. 3 is a functional block diagram showing a configuration of an AT mode execution unit.

FIG. 4 is a flowchart showing a game flow.

FIG. 5 is an explanatory diagram showing transition conditions to a high probability AT lottery mode and a low probability AT lottery mode.

FIG. 6 is an explanatory diagram of a case where a recording medium storing a program is installed in a slot machine.

[Explanation of symbols]

10 slot machine 22 Chance meter 30 CPU 30a control unit 31 memory 41 Electronic lottery department 42 Winning role determination section 43 Total lottery section 44 LED control unit 46 AT mode execution unit 50 AT mode control unit 51 AT mode lottery section 52 High probability table 53 Low probability table 54 AT number determination table 55 AT control memory 56 AT mode transfer lottery section 60 recording media 61 Computer 62 reader

Claims (9)

[Claims] 1. A reel comprising a plurality of types of patterns arranged on the outer periphery thereof, the reel rotating in response to a game start operation, and a winning combination determining means for determining one of a loss and a plurality of winning combinations by lottery. A game in the normal mode and a game in the special mode are selectively played, and in the game in the special mode, the winning combination determined by the winning combination determining means until a predetermined ending condition is satisfied. In a gaming machine in which an assist display prompting the player to stop the reels is performed so that the player can easily obtain the special mode, the special mode is selected in response to the special mode lottery or loss being determined by the winning combination determining means. The special mode right granting lottery means for determining whether or not to grant the right to shift to the A plurality of different probability tables, and table switching means for switching the probability table used in the special mode right grant lottery means in response to the table switching combination or loss being determined by the winning combination determination means, A gaming machine characterized in that the table switching means changes the probability of granting the right to shift to the special mode. 2. A winning combination of at least one of the plurality of types of winning combinations is set as a special mode transition winning combination that gives the right to shift to a special mode, and the winning combination determining unit determines the special mode shifting combination, The gaming machine according to claim 1, wherein when the right to shift to the mode is obtained, the table switching means switches to a probability table that determines only the number of shifts to the special mode. 3. In the plurality of types of probability tables, random number values are grouped so as to be different from each other, and the random value group in each probability table grants the right and the group to which the right is not granted. 3. The gaming machine according to claim 1, wherein the gaming machine is divided into groups, and the group to which the right is granted is composed of a plurality of groups to which the number of transitions to the special mode is assigned. 4. The gaming machine according to claim 3, wherein the random number values are grouped so that the number of transitions tends to increase as the right-granting probability increases. 5. The probability of granting the right to shift to the special mode when at least one of the plurality of types of winning combinations is won by the winning combination determining means and the lottery performed after this winning is won a predetermined number of times. A transition probability fluctuating role that is fluctuated, and in response to the winning of the transition probability fluctuating role by the winning combination determining means, an integration determining means that determines by lottery whether or not to accumulate the number of times the transition probability fluctuating winning combination And a winning number storing means for storing the number of times of winning in the lottery by the totalizing determining means, and the table switching means responds to the fact that the cumulative number of times stored in the winning number storing means has reached the predetermined number. 5. The gaming machine according to claim 1, wherein the probability table is switched. 6. A special mode transition for determining whether or not to transition from the normal mode to the special mode by a lottery in the next and subsequent games when it is determined to grant the right to transition to the special mode. The gaming machine according to claim 1, further comprising a lottery means. 7. The end condition of the special mode is that the number of games played under the special mode reaches a predetermined number, and the special mode transition lottery means sets the number of times of the final game under the special mode to 7. The gaming machine according to claim 6, wherein the lottery is performed using a probability table having a higher transition probability to the special mode than a probability table used in a game other than the final game. 8. A winning combination determining means for determining one of a loss and a plurality of types of winning combinations by lottery, and a special mode in response to the special mode drawing combination or losing being determined by the winning combination determining means. The special mode right granting lottery means for deciding whether or not to grant the right to shift to the special mode right granting lottery A program for causing a computer of a gaming machine to function as table switching means for switching the probability table used by the means. 9. A computer-readable recording medium in which the program according to claim 8 is recorded.