JP2009273693A - Slot machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slot machine capable of increasing the taste by eliminating monotony of a game. <P>SOLUTION: This slot machine shifts a mode to a chance 2 mode P3 by winning a single bonus SB1-3 in a regular mode P1. This slot machine shifts the mode to a high probability game state 6 by winning the single bonus SB4-6 in the chance 2 mode P3. In the regular mode P1 and the chance 2 mode P3, the bonus probability of the BB and RB is substantially set to "0", however, the high probability game state P6 is set to a high probability score and a bonus lottery possibly acquiring a large amount of tokens is executed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a slot machine that performs a spinning reel (reel) stop game using a game medium such as a medal or a pachinko ball.

In this type of slot machine, a game is played by betting a predetermined number of game media (hereinafter described in the case of using medals) during a normal game, and when winning a winning lottery, for example, a big bonus (hereinafter referred to as BB). Or a special bonus state (hereinafter referred to as RB) or the like that makes it easier to obtain medals. In the special game state, the winning probability of the small role to which the game medium is paid out is higher than usual, and BB is a bonus prize that is obtained several times more medals or the like than RB. If BB or RB is won, it is possible to shift by winning a winning combination with symbols that establish these combinations.

Conventionally, most slot machines have a so-called perfect probability system in which a bonus lottery is performed for each game. In the complete probability method, the bonus lottery probability is always constant, the expected value does not change, and the lottery is drawn with the same probability. Therefore, there is a problem that the game contents are uniform and tired.
In addition, as shown in Patent Document 1 and the like, in the case of a so-called bonus accumulation type slot machine that releases the accumulated bonus on the basis of a predetermined release opportunity while accumulating bonus winnings as the game progresses, Because the opportunity can be changed in various ways, euphoria has increased.

Therefore, as shown in Patent Document 2 and the like, in the slot machine of the complete probability method, in addition to giving a bonus game, it is possible to give an ART that is difficult to reduce or slightly increase in earned medals, and suppresses gambling. There is something that tries to diversify the contents. In the RT (replay time) state in which the probability of replay (replay) is increased and the number of medals has been reduced, the ART further informs (navigates) the winning small role type and establishes the role by pressing the key. It is a gaming state that makes it easy to play.
JP 2003-290436 A Japanese Patent Laid-Open No. 2007-215772

However, even if the ART state is given, if a game is played for a long period of time, as long as the complete probability method is maintained, the bonus lottery is always performed with a certain probability. This resulted in a monotonous game play that went back and forth, resulting in a problem that the rate of attracting customers or the machine operating rate did not improve.

In view of the above-described problems, an object of the present invention is to provide a slot machine that can eliminate the monotonous game and increase the interest.

According to a first aspect of the present invention, there is provided a rotating display unit that variably displays a plurality of symbols, and after the player sets a betting number of game media necessary for performing a rotating game, the rotating display is performed. The winning operation is to determine one of a plurality of winning combinations and replays that are determined in advance according to the lottery result, using the lottery operation as the lottery trigger, based on the lottery probability of a predetermined lottery table. A combination determination means; a rotation stop control means for performing stop control to stop the rotation display unit based on a player's stop operation; a symbol stop mode stopped by the rotation stop control means and the winning combination determination A control comprising: a winning determination means for determining that the winning combination is established when the display mode of the symbol corresponding to the winning combination determined by the means matches; and a probability setting means for setting the lottery table for each gaming state Having means and before In addition to multiple types of general winning combinations, a special winning combination that gives a special game advantageous to the player after winning a prize, and a specific game that gives fewer games than the special game can be specified. A slot machine that includes a winning combination and transitions to a normal gaming state after the end of the special game, wherein the probability setting means is used in the normal gaming state, and the lottery probability value of the special winning combination is 0 or It is used in the normal lottery table set to a predetermined value close to it and the specific gaming state by the specific winning combination, and the lottery probability value of the special winning combination is about the same as the combined probability value of the plurality of general winning combinations. A special game lottery table set to a larger value, and the control means is provided with the special game lottery table from the normal lottery table on condition that a specific game is generated by winning the special winning combination. It is a slot machine to switch to the game lottery table.

The second aspect of the present invention comprises at least two types of first and second specific winning combinations that give a specific game having a smaller number of game executions than the special game by winning as the specific winning combination, In the normal lottery table, the lottery probability value of the special winning combination is set to 0 or a predetermined value close thereto, and the lottery probability value of the first specific winning combination is based on the lottery probability value of the second specific winning combination. In the specific game lottery table, the lottery probability value of the special winning combination is set to 0 or a predetermined value close thereto, and the lottery probability value of the second specific winning combination is the first specific winning combination. The first specific game lottery table set to be larger than the lottery probability value and the lottery probability value of the special winning combination is set to a value equal to or greater than the combined probability value of the plurality of types of general winning combinations. Second The control means switches from the normal lottery table to the first specific game lottery table on condition that a specific game is generated by winning the first specific winning combination. A slot machine that switches from the first specific game lottery table to the second specific game lottery table on condition that a specific game is generated by winning of two specific winning combinations.

A third mode according to the present invention is a slot machine comprising a single bonus game executed in the first or second mode, wherein the specific game is executed only after a game won by the specific winning combination. .

According to the first aspect of the present invention, the control means switches from the normal lottery table to the specific game lottery table on condition that a specific game is generated by winning the specific winning combination. In the gaming state, the occurrence of the special game is suppressed by using the normal lottery table in which the lottery probability value of the special game that is easy to acquire a game medium such as BB or RB is set to 0 or a predetermined value close thereto. In the specific game, by using the special game lottery table in which the lottery probability value of the special winning combination is set to be equal to or larger than the combined probability value of the plurality of types of general winning combinations. Can increase the opportunity to obtain

Therefore, in the game process leading to the occurrence of the special game, a path leading up to the specific game and a path leading to the winning of the special game in the specific game appear, and the game leading from the former path to the specific game As a result, the interest in the previous stage is obtained, and the interest is enhanced in the specific game where the special game is obtained with a high probability, so that the perfect probability method in which the winning probability of the special game is fixed in the specific game is maintained. However, it is possible to eliminate the monotony of the game in the slot machine and increase the interest.

The specific game state in the present invention is not limited to a single game, and a plurality of specific game states can be provided. By providing a plurality of specific games, the path to the final specific game, which is a high probability occurrence state of a special game, is made in multiple stages. You can step up to further increase interest. That is, according to the second aspect of the invention, on the condition that the control means generates a specific game (hereinafter referred to as a first specific game) by winning the first specific winning combination. Switching from the normal lottery table to the first specific game lottery table, the first specific game lottery is performed on the condition that a specific game (hereinafter referred to as a second specific game) due to winning of the second specific winning combination occurs. Since the table is switched to the second specific game lottery table, in the normal game state and the first specific game state, a lottery probability value of a special game that is easy to acquire a game medium such as BB or RB is set to 0 or a predetermined value close thereto. In the second specific game, the occurrence of the special game is suppressed by using the normal lottery table set to a value or the first specific game lottery table. An opportunity for obtaining the special game by using the second specific game lottery table in which the lottery probability value of another winning combination is set to a value equal to or greater than the combined probability value of the plurality of general winning combinations. Even if the complete probability method is adopted in the second specific game by stepping up to the second specific game state through the normal game state and the first specific game state in multiple stages, the slot can be increased. The monotony of the game in the machine can be eliminated and the interest can be increased.

According to the third aspect of the invention, since the specific game is a single bonus (hereinafter referred to as RB) game that is executed only for the game next to the game won by the specific winning combination, SB is BB. Compared to RB and RB, the number of game media to be paid out is not large even if winning, and the number of game media to be paid out in the previous game until the final SB (high probability occurrence state of special game) is reached. It is possible to reduce the probability of drawing a special game in the final SB without affecting the expected value of the so-called ball design, and the high probability occurrence state with high expectation can appear.

An embodiment of a slot machine according to the present invention will be described with reference to the drawings.
FIG. 1 shows a slot machine A to which the present invention is applied. The slot machine A has a front door 202 rotatably attached to a housing 201 that houses various members and various substrates. In the upper part of the housing 201, heat radiation holes h1 to h3 for releasing heat generated inside the housing to the outside are provided. Nets n1 to n3 for preventing entry of foreign matter, dust and the like from the heat dissipation holes are attached to the inside of the heat dissipation holes h1 to h3, respectively.

  The front door 202 is pivotally attached to the housing 201 by hinge joining or the like on one side thereof. In the upper center of the front door 202, there is provided an effect display device 203 consisting of multiple liquid crystal screens so that characters, numbers, etc. can be projected as the game progresses, and various display effects such as a notification effect of the winning role can be performed. It has become. Upper speakers 204 (the upper left speaker 204a and the upper right speaker 204b) are provided on both sides of the effect display device 203, and in combination with the effects performed by the effect display device 203, sound effects such as various sound effects are provided. Can be done.

FIG. 4 shows a schematic configuration of the effect display device 203. The effect display device 203 is composed of a transmissive color liquid crystal display device 15a and a transmissive color liquid crystal display device 15b, which are stacked on the rear side of the front panel 15e, and each liquid crystal display screen is front and rear with a predetermined interval (about 2 inches). It is arranged parallel to the direction. A backlight light source 15d is provided behind the transmissive color liquid crystal display device 15b to illuminate the liquid crystal screen from the back side, and a cold light as an intermediate light source is provided between the liquid crystal display device 15a and the liquid crystal display device 15b. An edge light source 15c made of a cathode tube is provided. Further, a liquid crystal driving driver circuit 330 described later is disposed on the rearmost side. These components are housed in a display unit case (not shown), and are mounted on the upper part of the front door as a display unit from the back side. Of course, the effect display device can be composed of a liquid crystal or the like having a single display screen.

Although not shown, a polarizing panel is also provided between the liquid crystal display device 15a and the liquid crystal display device 15b to prevent image quality reduction such as color unevenness and moire fringes. The rear liquid crystal display device 15b does not necessarily have to be a transmission type, and the display device is not limited to a liquid crystal, and for example, a color EL (electroluminescence) may be used. In particular, the front display screen may be constituted by a transmissive color liquid crystal display device, and the rear display screen may be constituted by a color EL or a color plasma display device. As the symbol used for the effect display, numbers such as 1, 2, and 3, letters such as alphabets, character designs, and the like can be used.

FIG. 5 shows an outline of the control configuration of the effect display device 203 and the driver circuit 330. The driver circuit 330 is a display control circuit for driving and controlling each liquid crystal display device, and includes image data processors (VDP: Video Display Processors) 106a and 106b for effect display and variable display. The VDPs 106a and 106b include a sprite circuit for performing sprite processing of image drawing data, a color data processing palette circuit, a background processing screen circuit, and the like, and perform image display processing of the liquid crystal display devices 15a and 15b, respectively.

Connected to the VDPs 106a and 106b are image control ROMs 106c and 106g, character ROMs 106d and 106h for storing image data, VRAMs 106e and 106i as buffer memories for storing image data, and color palette RAMs 106f and 106j, respectively. . The character ROMs 106d and 106h store various types of display image data such as effect pattern image data, background image data, and effect image data. The display image data consists of data designating the color of each dot with a color number. The color palette RAMs 106f and 106j store color data for each color number. The VRAMs 106e and 106i store data for designating which number of display image data is arranged in each area set in the image creation area of each VDP.

The VDPs 106a and 106b receive various image data from the character ROMs 106d and 106h such as effect symbol image data, background image data, and effect image data from the character ROMs 106d and 106h in response to an image display command (control command) supplied from the CPU 327. And image data to be displayed on the liquid crystal display device is generated. Image data generated by each VDP is stored in the VRAMs 106e and 106i, and an image is displayed by supplying these image signals (image frames) to the liquid crystal display devices 15a and 15b at a predetermined timing.

Each VDP executes display processing based on an image display command supplied from the CPU 327. With this display processing, an image signal for one image (one frame) is output each time the VDP 106a, 106b receives one control command from the CPU 327. In the display processing procedure, first, data to be displayed is specified from the data stored in the VRAMs 106e and 106i based on the input control command, and the image creation area is set based on the specified data. Display data stored in the character ROMs 106d and 106h are arranged in the respective areas constituting the area. Next, scanning lines are taken out one by one from the image creation areas of the display data individually arranged in the respective liquid crystal display devices 15a and 15b, and the color numbers of the display data constituting the taken-out scanning lines are set to the color palette RAM 106f, The image data is converted into an image signal using the data 106j. The above processing is executed for all scanning lines, and the VDPs 106a and 106b output image signals to the liquid crystal display devices 15a and 15b.

As shown in FIG. 4, the liquid crystal display devices 15 a and 15 b constitute a multiplexed video screen in which the display screens are stacked, and the driver circuit 330 performs a multiplexed video display process using the stacked screen. The multiplexed video is performed by synchronizing the image display on the front display screen of the liquid crystal display device 15a and the rear display screen of the liquid crystal display device 15b. For example, multiple images can be displayed on the front and rear display screens so that the same or related symbols and character images are overlapped to display a three-dimensional design with a sense of depth, or from the front display screen to the rear display screen or vice versa. This is used to display a three-dimensional movement of a symbol or the like by switching the screen of the display symbol or the like so that the symbol or character image moves in the direction. The liquid crystal display devices 15a and 15b are also used independently. For example, the effect display is mainly performed on the front display screen, and the background image is displayed on the rear display screen at that time. The transparent or translucent state of the display screen on the front side is a display mode in which there is no image display, a display mode in which a display area excluding image display of a part of the screen can be seen through, and the entire screen is displayed in a predetermined color Including a display mode for making a monotone screen.

In the slot machine A according to the present embodiment, the sub-control unit 302, the driver circuit 330, and the effect display device 203 include a special winning combination (BB, RB), a plurality of types of specific winning combinations (SB), and a general winning combination (small combination). ) Or a notifying means for lottery of the winning combination type of replay with a predetermined notification lottery probability and confirming the determination. Based on the lottery result, the effect display device 203 performs a winning announcement effect display such as a bonus combination, a small combination, and a replay combination, and a pseudo effect display for notifying the possibility of winning combination.

The ROM 328 of the sub-control unit 302 constitutes effect display storage means for storing a plurality of types of the effect display display patterns. The sub-control unit 302, the driver circuit 330, and the effect display device 203 perform an effect display corresponding to the lottery result based on one of the display patterns stored in the ROM 328 based on the lottery result. For example, effects such as symbol variation display imitating pachinko variation are included. The CPU 327 selects one of the display patterns or one of the combination patterns according to the lottery result at the time of effect display, and executes effect display. A predetermined display pattern may be determined on the main control unit 101 side and transmitted to the sub control unit 302.
The display pattern includes a pattern in which the front liquid crystal screen is transmissive or semi-transmissive as the display on the effect display device 203 and the rear liquid crystal screen is displayed simultaneously with the front liquid crystal screen. A pattern that shows the display alone is included. A light emitting unit 205 having a plurality of LEDs, lamps, and the like is provided in the upper part of the effect display device 203, and performs light emission effects such as blinking and sequential lighting in synchronization with the above effects.

  A front panel surface DP is provided below the effect display device 203. A transparent window 207 is provided on the front panel surface DP so that the reels (rotors) 206a to 206c inside the housing can be visually recognized. The reels 206a to 206c are attached to a rotating shaft of a stepping motor (not shown) and are rotated by driving the motor. The reels 206a to 206c are provided on the surface thereof with a predetermined number of symbols along the rotation direction. From the window 207, a predetermined number of, for example, three symbols among the symbols on the reels 206a to 206c are visible. The reels 206a to 206c constitute a rotating display unit that changes the symbols displayed on the window 207. In this example, a design is shown in which a design is arranged on the surface of the reel and the design is changed by the rotation of the reel. However, the present invention is not limited to this, and the design is arranged on the surface of a rotating body, for example, a belt, and rotated. It is good also as a spinning cylinder display part which fluctuates a design. Further, on the front panel surface DP, an effective line indicator (displayed by lighting or the like indicating which line of the effective line, that is, the line to be awarded when the number of medals to be used for one gaming machine is set) (Not shown) is arranged on the front panel surface DP. (3A), (3B), and (3C) in FIG. 3 respectively show symbol arrays attached to the reels 206a to 206c. In the present embodiment, two types of bonus symbols MB1 (left reel symbol Nos. 11 and 9, middle reel symbol No. 10, right reel symbol No. 8: “blue 7”), MB2 (left reel) Design No. 18 and 16, middle and right reel design No. 18: “Red 7”) and MB3 (left reel design No. 4 and 2, middle reel design No. 3 and right reel design No. 3 13: “Special heart symbol”) is used.

  Below the window portion 207 is provided an operation panel provided with an operation portion operated by the player during the game. This operation panel includes an upper operation panel surface PN1 and a front operation panel surface PN2. On the upper operation panel surface PN1, a bet number setting switch 208 (1 bet switch 208a, MAX bet switch 208b) for setting the number of medals as a game medium provided for one game, a display for displaying the number of medals, etc. A device 209, a medal slot 210 for inserting medals, and the like are provided. The 1-bet switch 208a is for adding the number of medals bet in one game one by one by operating this switch. The MAX bet switch 208b is for setting the maximum number as the number of medals bet in one game. When the MAX bet switch 208b is pressed and the remaining number of medals is sufficient, the bet number is set to the maximum bet number, that is, three. When the remaining number of medals is less than the maximum bet number, all remaining medals are added to the bet number. In the present embodiment, a one-bet, two-bet, three-bet game is performed according to the gaming state. In the gaming state of one bet or two bets, even if the MAX bet switch 208b is pressed, three bets are not made, and the upper limit one bet or two bets are set.

  The display 209 is composed of a segment display device or the like, and displays the number of medals to be paid out (the number of payouts), the number of medals that have been inserted and stored electronically (the number of credits), and the like. The slot 210 is formed so that game medals can be inserted one by one. The medal guide groove reaching the medal insertion slot 210 is provided so as to be inclined upward toward the insertion slot and obliquely outward toward the rear.

  On the front operation panel surface PN2, a start switch 211 for starting the rotation of the reels 206a to 206c and a reel stop stop switch 212 (212a to 212c) provided corresponding to the reels 206a to 206c are provided. It is arranged. Around the front operation panel surface PN2, a return button 213 for discharging the remaining medals in the medal sorting device for sorting medals inserted from the medal slot 210 is provided. A lock device 214 for switching the lock state of the front door 202 is provided at the open end.

  A design panel 215 that forms a design surface based on the motif of the slot machine A or the like is attached to the lower portion of the front door 202, and emits light by illumination provided inside. A medal payout opening 216 for discharging a medal to be paid out as a prize or by a return operation is provided at a lower portion of the design panel 215. The medal payout opening 216 is provided in an inverted trapezoidal shape having a lower lower side than the upper side. Lower speakers 217 (left upper speaker 217a and right upper speaker 217b) are provided on the left and right sides of the medal payout opening 216. At the lowermost part of the front door 202, an ashtray 218 and a medal storage tray 219 for storing medals discharged from the medal payout outlet 216 are provided.

  Next, the operation of the slot machine A during a game will be described. When playing a game, the player first inputs a predetermined number of medals from the medal insertion slot 210 and then operates the start switch 211. This starting operation triggers a lottery performed inside the gaming machine. Further, after the reels 206a to 206c are rotated by the start operation and reach a certain speed, the operation of the stop switches 212a to 212c becomes effective. Based on the timing of each stop operation, each reel is controlled to stop at a position corresponding to the lottery result inside the gaming machine. When any winning combination other than replay is won, when a symbol combination of the winning combination is established on the active line, a predetermined number of medals are paid out. The slot machine A electronically stores the number of medals inserted from the medal insertion slot 210 in a storage unit inside the gaming machine up to a predetermined number, for example, 50, and displays this number on the display 209. It has a function to do. Then, by depressing the betting number setting switch, it is possible to subtract a predetermined number from the storage unit and simultaneously set it as the betting number for the next game and use it for the game. Note that pachinko balls may be used as game media instead of medals.

  FIG. 2 shows an electrical block configuration of the slot machine A. The control unit 300 of the slot machine A includes a main control unit 301, a first sub control unit 302, and a second sub control unit 303. The main control unit 301 controls overall gaming operations of the gaming machine. The first sub-control unit 302 drives the effect display device and the like, thereby performing effect display control at the time of reel start, rotation, and stop. The second sub-control unit 303 creates a production effect in cooperation with the production in the production display device by driving the upper and lower speakers and the production lamp.

  The main control unit 301 includes a CPU 305, a ROM 306 that stores programs, and a RAM 307 that temporarily stores read information, status, and the like. The CPU 305 includes a random number generator capable of generating a random number value (0 to 65535), and also functions as a lottery means for performing a lottery during a game using the random number. The ROM 306 includes a lottery table storage unit 311 for storing a lottery table in which a random value is associated with a result of success / failure for use in a lottery process by the CPU 305. The lottery table storage unit 311 includes a plurality of tables having the same random number value but different results, and stores these as probability setting values. The lottery table storage unit 311 stores six types of lottery tables with different winning probabilities for various bonuses, and these can be switched in six stages as set values having different payout rates. The ROM 306 also includes an abnormality information display program for displaying an abnormality that has occurred in various parts of the gaming machine and a stop data table for determining the stop position of the reel. The RAM 307 includes a credit number storage unit 317 that electronically stores the number of inserted medals.

  A signal from the operation unit 319 is input to the main control unit 301 via the interface 318. An operation signal input by the player at the operation unit 319 is transmitted to the main control unit 301 via the connection terminal unit 342. The operation unit 319 includes stop switches 212a to 212c, a bet number setting switch 208, and a start switch 211. Similarly, a signal from a medal detection sensor 320 installed in a medal sorting device (not shown) for detecting and sorting medals inserted from the medal slot 210 is also input to the main control unit 301. By this signal, the stored number of credits in the credit number storage unit 317 is updated. The main control unit 301 includes a winning combination determining means for determining a predetermined winning combination or replay by lottery, a reel stop control means for performing reel stop control according to a stop operation timing based on the lottery result, and a predetermined combination The control means of the slot machine A is composed of winning determination means for determining whether or not a winning operation is established at the time of winning.

  A signal from a setting change unit 321 including a key switch 326 and a setting change switch 327 provided on the main control unit board is input to the main control unit 301 via an interface 318. The main control unit receives these signals and changes the set values. A signal from the front door opening detection unit 322 including the front door opening sensor SW, the first opening angle detection sensor 352, and the second opening angle detection sensor 353 is also input to the main control unit 301 via the interface 318. Signals from the stop selection switch 328a, the adjustment selection switch 328b, and the door opening sensor 329a provided on the main controller board are also input via the interface 318.

  The main control unit 301 drives and controls the display unit 209, the reel driving unit 324, the payout device 337, the door unit opening notification unit 325, the abnormality notification lamp 326, and the like via the driver circuit 323. The display 209 displays the number of credits during the game, but the setting value is displayed in the setting change mode. In addition, the display 209 is configured so that information on an abnormality that has occurred in each part of the gaming machine is displayed as an error code. When an abnormality occurs, priority is given to the display of the number of credits and the set value. Then, it is controlled by the main controller so that the error code is displayed.

  The reel driving unit 324 includes a left reel driving unit 324a, a middle reel driving unit 324b, and a right reel driving unit 324c that are provided corresponding to the reels 206a to 206c, respectively. Each of the reel driving units 324a to 324c includes a reel driving stepping motor. The reel driving units 324a to 324c rotate the reels according to the operation of the start switch, and display predetermined symbols on the reels according to the operation of the stop switch. The stepping motor is driven and controlled so as to stop in the state displayed on the screen. The door part opening notification device 325 includes an LED or the like for notifying that the door part 225 is open. By turning on the door opening alarm 325, forgetting to close the door 225 can be prevented. The abnormality notification lamp 326 includes an LED or the like for notifying a control abnormality or a gaming state abnormality occurring in the gaming machine.

  The first sub-control unit 302 is connected to the main control unit 301 via the relay board 304 and receives the signal from the main control unit 301 and controls the effect display device 203 and the like. The first sub-control unit 302 includes a CPU 327 that controls the overall operation of the first sub-control unit 302, a ROM 328 that stores effect display data and the like, a RAM 329 that temporarily stores the state of the effect being executed, and the like. An effect display device 203 is connected to the first sub-control unit 302 via a driver circuit 330. The effect display device 203 receives a drive signal from the first sub-control unit 302 and displays an image on the liquid crystal. Control is performed so that frames are read sequentially. By this control, an effect display related to the lottery result of the main control unit is performed. The various effects include game effects such as a display of a winning combination, a congratulation display when a winning combination is established, a progress display during a bonus, etc. performed at the time of reel start, reel rotation, or reel stop.

In the slot machine A according to the present embodiment, the first sub-control unit 302, the driver circuit 330, and the effect display device 203, depending on one of the game effect display patterns stored in the ROM 328, according to the lottery result. An effect display control means for performing a game effect display corresponding to the lottery result is configured.

  The second sub-control unit 303 is connected to the main control unit 301 via the relay board 304 and the first sub-control unit 302, receives signals from the first sub-control unit 302, and controls speakers and lamps. It has a function to perform. The second sub-control unit 303 includes a CPU 331, a ROM 332 that stores effect data and the like, a RAM 333 that temporarily stores the state of the effect being executed, and the like. An upper speaker 204, a lower speaker 217, and an effect lamp 335 are connected to the second sub control unit 303 via a driver circuit 334, and the second sub control unit 303 drives these to perform effect control.

Next, the game control operation of the slot machine A will be described below. FIG. 6 is a flowchart showing a normal game process by the main control unit during a normal game. First, in order to start a game, a betting number setting process (step S1) is performed. When the bet number is set, the operation of the start switch becomes effective. Note that the number of medals required to execute one game differs depending on the game state. In the normal gaming state, the game is a three-bet game, and in the role game state and the high-probability game state, which will be described later, the two-bet game and the three-bet game, respectively.
When a new medal is inserted from an ungame state in which no bet number is set, this medal is detected by the medal sensor 320. For example, in the normal game state, the number of inserted medals is automatically up to three. Is set as the bet number. When the re-game is established by the previous game, the betting number setting process is not performed because the betting number is automatically set. In cases other than the above, when the player presses the bet number setting switch 208, the number of medals operated from the credit number storage unit is subtracted, and the number of bets is set as the bet number. The remaining number of credits is displayed on the display 209. At the same time, the winning line corresponding to the number of bets is activated, and that effect is displayed on the activated line display. The bet number can be changed until the start switch is operated.

After the betting number setting process (step S1), the operation of the start switch 211 is awaited (step S2). When the start switch 211 is operated, a lottery process (step S3) and a reel rotation process (step S4) are performed. In this lottery process, random numbers generated by a random number generator included in the CPU of the main control unit are extracted at the operation timing of the start switch 211, and based on a lottery table stored in the lottery table storage unit 311 of the ROM of the main control unit. This is the main lottery process for determining whether or not the game is successful. The lottery table used in this lottery varies depending on the value stored in the set value temporary storage unit 315. The lottery result determined based on the lottery table includes a small role for paying out a predetermined number of medals, a replay that allows the next game to be executed without inserting a new game medium, and a small number of games from the next game. A bonus combination for starting a bonus game that raises the winning probability of a combination, and a miss are included. When a bonus is won, a winning bonus flag of BB, RB or SB is stored in the RAM of the main control unit. And according to each combination, the symbol combination arranged on an effective line is defined (refer FIG. 12 mentioned later). In the following description, the determination of each winning combination by lottery is called “winning”, and the combination of symbols corresponding to the winning combination on a predetermined effective line is called “winning”. Hereinafter, processing by the main control unit and the sub control unit will be referred to as main processing and sub processing, respectively.
FIG. 7 shows the details of the lottery process (step S3). A random number is acquired in response to the operation execution of the start switch 211 (step S40), and a winning combination is determined based on the acquired random number (step S41). A bonus flag is stored in the RAM when a bonus is won, and is invalidated when the player is in an internal winning state (steps S43 and S44). Similarly, when any small combination or replay is won, each flag is stored, and in the case of a loss, these combination flags are not established (steps S45 to S48).

  The reel rotation process in step S4 is a process of rotating the reels 206a to 206c by transmitting a drive signal to the reel drive unit 324. By this reel rotation processing, the stop switch operation becomes effective after the rotation speed of the reel becomes constant. Subsequently, in step S5, it is detected whether or not the stop switch 12 has been operated. And when stop operation is performed, the stop control process (step S6) which stops the reel corresponding to stop operation is performed. This stop control process refers to the reel stop table stored in the ROM 306 on the basis of the stop operation position where each reel is stopped and the lottery result of the lottery process. This is done by stopping the rotation. The reel stop position is determined so as to be pulled in and stopped within a predetermined number of symbols, that is, within four frames stipulated in the game rules, as viewed from the stop operation position. Then, when there are symbols corresponding to the lottery result within 4 frames from the stop operation position, stop control is performed so that the winning combination symbols are aligned on the active line. As shown in the symbol array of FIG. 3, the different bonus symbols MB1 to MB3 in each reel are arranged apart from each other by four or more frames so that they are separated from each other and controlled independently. In particular, in the re-game stop control process, as will be described later, when the re-game is won not only in the normal game but also in the bonus flag carry-over state, the re-game is always aligned on the active line. Thus, preferential pull-in control is performed. Since the number of used medals varies depending on the game state, the number of active lines is 3 lines, 2 bets and 1 bet state. It fluctuates with 3 lines and 1 center line. Note that the number of active lines may always be set to 5 lines regardless of the number of bets in the gaming state.

  Next, in step S7, it is determined whether or not all the reels 206a to 206c are stopped. If not stopped, the process returns to step S5 to perform stop control processing. If all the reels are stopped (step S7), it is determined in step S8 whether or not the winning symbol is on the active line. When a winning is established (step S8) and the winning combination is a small combination (step S9), the payout device 337 is driven to pay out a predetermined number of medals (step S10). On the other hand, when a re-game is established (step S11), an automatic bet number setting process for automatically resetting the bet number set in the current game as the bet number of the next game is performed in step S12. . In this case, since the number of credits is not subtracted from the credit, the next game can be played without inserting a new game medium (including the consumption of credit). Since the next game bet number setting process is automatically performed, the bet number setting process is not performed in the next game. In the case of the normal game process of FIG. 6, regarding the bonus lottery, as described later, the lottery probability of BB or RB among the bonus games is set to 0, and only the single bonus games SB1 to SB1 are substantially drawn. . As for the single bonus, the single bonus game (combination game) is executed once only for the game next to the game won by the SB winning combination (step S13). When the SB wins in the normal game state, the bonus game BB or RB lottery probability is set to 0 in the bonus game as well, and the game process in the normal game state of FIG. Similarly, the relevant game is processed.

FIG. 8 schematically shows a correlation between a plurality of gaming states in the present embodiment. The gaming state mode includes a normal (three-wager betting) mode P1, a chance 2 (two-wagering) mode P3, and a high probability (one-wagering) mode P6 in the normal gaming state, and different lottery tables are used. In the normal mode, the lottery table in the normal gaming state of FIG. 9 is used. In the chance 2 (SB role game) mode, the lottery table in the game state in the intermediate stage of FIG. 10 is used. In the high probability mode, the lottery table in the high probability gaming state of FIG. 11 is used. SB1 to SB3 in the present embodiment correspond to the first specific winning combination of the present invention that gives an SB bonus game (specific game) having a smaller number of game executions than the special game (BB or RB) by winning. The SBs 4 to 6 in the present embodiment correspond to a second specific winning combination of the present invention that gives an SB bonus game (specific game) having a smaller number of game executions than a special game due to winning. Further, the chance 2 mode P3 and the high probability mode P6 correspond to the first specific game and the second specific game according to the present invention, respectively. As shown in FIG. 12, each SB combination is related to the combination of bonus symbols MB1 to MB3, and unless the combination type is determined at the time of winning, it can be awarded in line with the symbol arrangement of FIG. It is a difficult bonus role.

  When power is supplied to the slot machine A (P0), the slot machine A is set to the normal mode P1 as an initial setting. The normal mode includes an ART gaming state (chance 1 mode P1B) in which a winning navigation for notifying that one of the single bonuses SB1 to SB3 is won is performed. In the RT (replay time) state where the probability of replay (replay) is increased and the number of medals is reduced, the ART is notified (navigated) of the winning SB and small role, and the formation of the role is established by pressing the eye. This is an advantageous gaming state for the player.

In particular, in the chance 1 mode P1B, when the SB is won, navigation is performed with a predetermined notification probability. As will be described later, in the normal mode lottery table, any of the three types (SB1 to SB3) is easy to win, and in the chance 1 mode P1B, the winning SB win is easily established. The winning type of any of the types (SB1 to SB1) is notified. The notification lottery probability of navigation performed in the gaming state of chance 1 mode P1B is not uniform, and either 100% navigation rate or 50% navigation rate is selected and set by the lottery performed at the time of transition to chance 1 mode P1B Is done. In other words, in the former case, the type is notified every time SB is won, and in the latter case, the type is notified when winning with a 1/2 lottery probability. (19A) in FIG. 19 is a notification example displayed on the effect display device 203, and this screen is a case where only one of SB1 to SB3 is won and the type notification is not accompanied. (19B) in the figure is a type notification example for notifying that the winning SB is SB2 in the screen notification display.
When the chance 1 mode P1B is not set in the normal mode P1, the normal gaming state P1A in which the type of the winning SB is not navigated is set. In the normal gaming state P1A, in addition to setting the navigation rate to 0, a lottery probability such as 3/256, for example, may be drawn at a very low navigation rate.

  FIG. 12 shows a payout table for the slot machine A according to the present embodiment. As bonus types, in addition to BB and RB where a large amount of medals are expected, eight types of single bonuses (SB1 to SB8) are included. As shown in the lottery data for each combination in FIG. 9 (winning random number range for determining the lottery probability), in the normal mode, the lottery probabilities for BB and RB are set to “0”. As for the single bonus, among the eight types, SB1 to SB3 are set to predetermined values (1000/65536), and the other lottery probabilities are set to “0”. In the lottery table of FIG. 9, small bonuses other than bonuses (bell, watermelon, cherry CH) and replay RP are set to predetermined values, and the lottery probabilities of these small roles and RP are the lottery of FIG. 10 and FIG. The same value is set in the table. The lottery tables in FIGS. 9 to 11 are examples of predetermined stage settings, and are stored in the lottery table storage unit 311 together with various lottery tables for each stage setting.

In the normal mode P1, that is, in either the chance 1 mode P1B or the normal game state P1A, if one of the SBs 1 to 3 is won and won (P2), the game shifts to a one-time SB bonus game. The SB combination game itself is in an intermediate stage chance 2 (two-bet SB combination game) mode P3 for approaching BB or RB bonus acquisition. As shown in the lottery data (the winning random number range for determining the lottery probability) in FIG. 10, in the chance 2 mode, the lottery probabilities for BB and RB are set to “0”. As for the single bonus, among the 8 types, SB 4 to SB 7 are set to predetermined values (1000/65535), and the other lottery probabilities are set to “0”. In the lottery table of FIG. 10, compared with the lottery table of FIG. 9, the combined probability value of SB as an accessory game is improved. Regarding the lottery data in FIG. 9 or 10, the lottery probability of BB and RB may be set to a set value close to “0”.

In chance 2 mode P3, if you win any of SB4-6 and win (P5), you will move to a one-time SB bonus game, but the SB bonus game itself is expected to get a bonus for BB or RB The final stage of high-accuracy (single betting SB bonus game) mode P6 is entered. SB7 is a single bonus as a specific combination that triggers the return to the chance 1 mode P1B. In chance 2 mode P3, even if none of SB4 to 6 is won, if SB7 is won (P4), chance 1 that the type of winning SB is navigated after the end of one SB7 accessory game Return to mode P1B. The bonus game of SB7 is a three-bet SB bonus game in which the combined probability of the bonus lottery is close to “0” and the bell role is won almost 100%. In the chance 1 mode P1B obtained by winning the SB7, the ART state for 50 games is set, and a chance state in which the transition to the chance 2 mode P3 can be made again. When none of the SBs 4 to 7 is won and the chance 2 mode P3 is ended, the normal gaming state P1A in which the type of the winning SB is not navigated is entered. Instead of SB7, a small combination of “watermelon” or “cherry” with reduced winning probability may be used as a specific combination that triggers the return to the chance 1 mode P1B. In the chance 2 mode P3, if any of the SBs 4 to 7 is not won and a small role is won, the winning becomes possible, and then the normal mode P1 is resumed. Of course, also in the case of the lottery result of losing, the normal mode P1 is returned after the losing process. When the replay is established in the chance 2 mode P3, the next replay related to the replay is performed in the normal mode P1. In this re-game, the above-described automatic bet number setting process is performed, but in the chance 2 mode P3, since it was a two-game bet game, the re-game in the normal mode P1 is automatically set to the maximum bet number state of three bets. Then replay is performed.

In the high-accuracy mode P6, as shown in the lottery data for each combination in FIG. 11 (the winning random number range for determining the lottery probability), it was “0” in the case of FIG. 9 and FIG. The RB lottery probabilities are set to high probability values of 16384/65536 (= 1/4) and 4096/65536 (= 1/16), respectively. Bonus lottery that can be won. The high-accuracy mode P6 is a one-bet SB bonus game, which is a one-chance bonus acquisition game. In the high-accuracy mode P6, when the BB is won and won, the state shifts to the BB gaming state (P8), or when the RB is won and won, the state shifts to the RB gaming state (P9). For the single bonus, the lottery probability of SB1 to SB7 out of the eight types is set to “0”, and only SB8 is set to a predetermined value (16384/65536). It is preferable that the lottery probability of BB and RB in the high-accuracy mode P6 is set to a value at least equal to or greater than the combined probability value of a plurality of types of general winning combinations in order to win a bonus with a high probability. . Also, in the lottery table such as the high-accuracy mode P6, the winning random number range may be set so that a specific small role such as a cherry and a bonus combination can be drawn simultaneously, so-called simultaneous lottery.

SB8 is a single bonus as a specific combination that triggers the return to the chance 1 mode P1B. Even if the BB or RB bonus win is not obtained in the high-accuracy mode P6, if the SB8 is won (P7), the type of the winning SB is navigated after the one-time bonus game of SB8 Return to the 1 mode P1B. As in SB7, the bonus game of SB8 is a three-bet SB bonus game where the combined probability of the bonus lottery is close to “0” and the bell role is won almost 100%. In the chance 1 mode P1B obtained by winning the SB8, the ART state for 100 games, which is more than in the case of SB7, is set, and a chance state is reached in which the mode can be shifted to the chance 2 mode P3. Instead of SB7, a small combination of “watermelon” or “cherry” with reduced winning probability may be used as a specific combination that triggers the return to the chance 1 mode P1B. In the high-accuracy mode P6, if any bonus is not won and a small role is won, the winning becomes possible, and then the normal gaming state P1A in which the type of the winning SB is not navigated is returned to. Of course, also in the case of a lottery result, the game state returns to the normal gaming state P1A after the loss process. Similar to the chance 2 mode P3, when a replay is established in the high probability mode P6, the next replay related to the replay is performed in the normal gaming state P1A. In this replay, the above-described automatic betting number setting process is performed. However, since the high probability mode P6 is a single betting game, the replaying in the normal gaming state P1A is automatically set to the maximum betting state of three bets. It is set and replay is performed.

BB, RB, or SB1 to SB1-8 are given by the combination of bonus symbols MB1, MB2 and MB3 shown in FIG. When three bonus symbols MB1 or MB2 are arranged, a big bonus BB and a regular bonus RB with a number of medals obtained less than one third of the BB are obtained. In BB and RB, a maximum of 401 sheets and 102 sheets are paid out, respectively. Each bonus is determined by lottery, and a separate bonus flag is established at the time of winning. In addition to the bonus and replay RP, there are a bell role (role type # 12) with a bell set, a watermelon role with a watermelon match (role type # 13), and a fruit role FR1 to FR3 with a cherry role (role type # 14). The cherry combination is a so-called single cherry combination that wins only by stopping on the effective line of the left reel 206a.

FIG. 13 is a flowchart showing the main game process in the high probability mode P6. In the figure, the same step number is attached to the same process as the normal game process of FIG. The betting number setting process (step S1) is the same as that in the normal game except that the number of medals bet required for the game is 1, and hereinafter, the process leading to the winning game process (step S13) through winning determination. Is the same as in normal games, and the description is omitted. However, the accessory game process (step S13) in the high-accuracy mode P6 includes a BB or RB bonus game process or a single bonus game process by SB8. If the SB is won and the single bonus game flag is established, if the winning fails, the SB flag will disappear, but the BB or RB bonus flag will continue to be memorized until the winning occurs even if winning is won. And carried over. If no prize is won even if BB or RB is won, the process proceeds to a bonus carry-over process (steps S8, S14, S15). In other words, if the determination in step S8 is NO (non-winning), it is determined in step S14 that a bonus has been won in the lottery, but as a result of stop control, the winning line was not drawn because it was not drawn. If YES, a bonus flag carry-over process is performed in step S15. If the SB8 winning is missed, the bonus carry-over process (step S15) is not performed, and the high-accuracy mode P6 is terminated and the process returns to the normal mode P1. In the bonus carry-over process (step S15), the same small role lottery as in the normal mode P1 or the like is executed, but the BB, RB or SB lottery process is not performed, and a bonus prize is awarded according to the winning BB or RB flag. A reel stop control process that is established with priority is performed. In other words, the bonus carry-over process is performed by storing the establishment of the bonus flag in the RAM of the main control unit. In a game in which the bonus flag is established, the number of established bonus flags is added even if the bonus is won. There is no. The memorization of the bonus flag is continued until a bonus combination is won.

In the bonus game (P8, P9) of BB or RB, the random number width corresponding to the specific small role is changed, and the winning probability of the specific small role is greatly improved. By being switched, it is in an advantageous state in which a specific small combination is frequently won and the player can quickly acquire medals. That is, in the bonus game state, for example, the FR1 lottery probability value of the fruit role is markedly improved from that in the normal game, becomes approximately 1 / 1.1, and it is very easy to win during the bonus game. In addition, the number of payouts for one FR1 winning is also increased from 7 to 15 at normal times.

FIG. 14 shows BB or RB bonus game (P8, P9) processing. Since the processing from step S20 to step S26 is the same as the processing from step S1 to step S7 in FIG. 6, the description thereof is omitted here. A lottery based on the high probability small role lottery probability table in the bonus game state is performed in response to the reel start operation. If the determination of whether all the reels are stopped (step S26) is YES, it is determined in step S27 whether a winning according to the lottery has been established on the active line. If there is no winning combination, the process returns to step S20 to play the next game. If there is a win, the winning combination is determined in step S28. If the game is replayed, an automatic betting number setting process is performed in step S30 and the process returns to step S20 to play the next game. In the case of a small role, after the payout device 337 is driven in step S29 to pay out a corresponding number of medals, it is determined in step S31 whether or not the bonus game is terminated. The end timing of this bonus game is that the added value of the payout number here reaches a prescribed number, for example, 401 when it is BB. For this reason, every time a small combination is established, the payout number is counted in the RAM of the main control unit, and when the predetermined number is reached, the bonus game is canceled and the normal game state is restored.

At the end of the BB bonus game, an ART granting process is performed. This distribution lottery can be executed either at the time of winning the bonus, such as at the time of winning the BB or at the time of winning the cherry during the BB game. If the lottery is won (P10), after the end of the BB game, the game moves to the chance 1 mode P1B (50 ART games) in which the type of the winning SB is navigated. Return to P1A. On the other hand, 100% ART is awarded at the end of the RB bonus game. In other words, after the end of the RB game, the game always shifts to the chance 1 mode P1B (50 ART games) (P11). Even if a small number of RBs are won, the player's expectation can be increased without being disappointed. In this embodiment, a chance 1 mode P1B consisting of 100 to 50 ARTs (P4, P7, P10, P11) is given, but a special ART that can be continued until the next BB or RB is won. You may make it possible to give by lottery.

The RT game in the chance 1 mode P1B is a high-probability replay state in which the probability of winning a replay is significantly increased by switching the random number width of the lottery table. As shown in FIG. 9, the replay probability is set to 8978/65536 (up to 1 / 7.3) in the normal gaming state, but greatly improved to 1 / 1.2 in the RT game. To do. In this case, the probability of bonuses and small roles other than replaying is the same as in the normal gaming state P1A, but the random number assigned to the outlier is assigned to replaying. The game is won and the game can be performed with little medal consumption.

Details of the game processing from the normal gaming state to the bonus acquisition in the slot machine A will be described with reference to FIGS. 15 and 16 show a game process flow based on the correlation between the game states shown in FIG. In the game processing of FIGS. 15 and 16, the flow in the case where a general small combination, replay, or loss occurs has been omitted.
When the slot machine A is activated by turning on the power (step S50), the normal gaming state mode (P1) is set as an initial setting (step S51). The normal game state mode (P1) at the time of power-on is a non-ART normal game state P1A, but the operation may be suddenly started from the chance 1 mode P1B upon power-on.

In the normal game state mode, when one of the single bonuses SB1 to SB1-3 is won and a winning is established, the game state (P3) of the winning SB is shifted (steps S52 and S53). In a single SB bonus game, when one of the single bonuses SB4 to SB6 is won and a winning is established, the game shifts to a high probability game state (P6) in which a high probability lottery of BB or RB is performed (step 6). S54, S55). If none of the single bonuses SB4 to SB6 is won, the presence / absence of a special winning combination is confirmed (steps S54 and S56). When the specific combination of SB7 wins, the SB7 combination game is performed and the ART flag is turned on and stored (steps S57 and S58), and the process proceeds to step S59 and subsequent steps. The ART flag is stored in the main control unit and / or the sub control unit. If no specific winning combination has occurred, the ART flag is not turned on and the normal gaming state P1A is resumed (step S56).

When the ART flag is turned on by winning the special role winning of SB7, the navigation effect of the type notification of the winning SB is shifted to the chance 1 mode P1B which is an ART gaming state in which the effect display device 203 performs the navigation effect display and the sound effect effect. (Steps S59 to S61). In this ART gaming state, since the winning SB type is notified, the player can surely win the winning SB as long as the player does not fail to push. When the winning SB is won, the game game state (P3) is entered again (steps S60 and S53). Since the number of ART games by the SB7 specific role winning is 50, if there is no winning SB winning by the end of 50 games, the ART flag is turned off and the normal gaming state P1A is returned (steps S61, S62). ).

FIG. 16 shows a processing flow after the transition to the high probability gaming state (P6). When BB or RB is won in the SB bonus game in the high probability game state (P6), a bonus winning is generated by aligning the winning bonus symbols. Since the high-probability gaming state (P6) is also a one-time SB bonus game, the lottery result during the game is early after the start of the game (when the lottery is decided after the reel start) or immediately after the reel stops or stops. It is preferable to be notified. In particular, since it is necessary to aim for the SB8 winning in order to stop it, it is optimal to notify immediately after the start. (19C) of FIG. 19 is an example of BB or RB bonus confirmation notification immediately after start-up displayed on the screen. In this case, the SB 8 is unsuccessful, and the BB or RB related to the winning may be specified and notified. In the high-probability gaming state (P6), once the BB or RB bonus flag is established, the bonus carry-over process (see step S15 in FIG. 13) shifts to a reel stop control mode that gives priority to winning a bonus symbol. You can win bonus prizes.

In the high probability gaming state (P6), a BB bonus game is executed by BB winning (Steps S55, S63, S64), and an RB bonus game is executed by RB winning (Steps S55, S67, S68). At the end of the BB bonus game, an ART granting process is performed. When the lottery is selected, the ART flag is turned on, and after the end of the BB game, a transition is made to chance 1 mode P1B (50 ART games). (Steps S64 to S66, S71). When the distribution lottery is unsuccessful, the ART flag is not turned on and the normal gaming state P1A is returned (steps S66 and S51). In the case of an RB bonus game, the ART flag distribution process is not performed and the ART flag is turned on, and after the end of the RB game, the game always shifts to the chance 1 mode P1B (50 ART games) (step S67). , S68, S71).

When BB or RB is not won, and SB8 is won and won, SB8 is played and the ART flag is turned on and stored (steps S70 and S71), and the process proceeds to step S72 and subsequent steps. The ART flag is stored in the main control unit and / or the sub control unit. When the special combination winning of SB8 does not occur, the ART flag is not turned on, and the normal gaming state P1A is returned (step S69).

When the ART flag is turned on by winning a special role in SB8, as in the case of SB7, it is an ART gaming state in which the navigation effect of the type notification of the winning SB is performed by the navigation effect display and the sound effect effect by the effect display device 203. The chance 1 mode P1B is entered (steps S72 to S74). The chance 1 mode P1B triggered by the SB8 specific winning combination shifts to 100 ART games. In the case of SB8 winning, since the BB or RB bonus winning is not missed even though the high probability gaming state (P6) has been reached, more ART is required to be more advantageous than in SB7. The number of games is awarded. As for the number of ART games by the special combination winning of SB8, if there is no winning SB winning by the end of 100 games, the ART flag is turned off and the normal gaming state P1A is returned (steps S61 and S62). In the ART gaming state obtained by the occurrence of BB or RB, if there is no winning SB winning by the end of 50 games, the ART flag is turned off and the normal gaming state P1A is returned (step S61, S62).

When the high probability game state (P6) is reached, in the ART game state obtained by the occurrence of BB or RB or the winning of SB8, when the winning SB is won, the game state (P3) is again transferred ( Since steps S73 and S53), the high probability gaming state (P6) can be obtained again with the shortest number of games from the end of the bonus game, and it is possible to acquire the bonus game in a short time without consuming a large amount of medals. become.

As described above, the slot machine A shifts to the chance 2 mode P3 by winning SB1 to SB3 in the normal mode P1, and enters the high probability gaming state P6 by winning SB4 to 6 in the chance 2 mode P3. Since the BB or RB bonus game is generated, a special game such as BB or RB is suppressed in the normal gaming state, and the BB or RB is randomly selected in the high probability gaming state P6. Use of the lottery table can increase the chances of obtaining special games. Therefore, in the game process leading to the occurrence of the special game, the path to acquire the high probability game state P6 and the path to the special game win in the high probability game state P6 appear, and the path to the high probability game state P6. As a result, it is possible to obtain interest as a previous stage and further increase interest by reaching a high probability gaming state P6 in which special games can be obtained with a high probability, so that the probability that the probability of winning a special game in the high probability gaming state P6 is fixed. Even with this method, it is possible to eliminate the monotonization of games in the slot machine and increase the interest. In addition, in the journey from the normal mode P1 to the acquisition of the high probability gaming state P6, by providing the chance 2 mode P3, the journey to the final high probability gaming state P6 is stepped up in multiple steps and the entertainment is further enhanced. Can be increased.

In the slot machine A, BB and RB bonus games are generated, but only BB or RB alone may be used. Moreover, you may make it fluctuate the navigation rate (notification lottery probability) which alert | reports SB classification in ART given after the bonus end.
FIG. 17 is a diagram schematically showing a correlation between gaming states in an embodiment in which only BB is mounted. Regarding the modes in the slot machine according to this embodiment, P0 to P8 have the same contents as the modes in the above-described embodiment shown in FIG. However, in the lottery table in the high-probability gaming state (P6), the winning probability of BB is increased by RB, and the probability value is set to 5/16. In the case of FIG. 17, in the chance 1 mode P1B that is shifted to after the end of the BB game, the number of ARTs and the navigation rate assignment distribution lottery process P12 is performed, and the distribution lottery performs 100 ART (P13) and 30 times. Assigned to ART (P14). There is also 30% without ART in the sorting lottery, and the rest is sorted into (P13) and (P14) at a ratio of 2: 1. In ART (P13) and ART (P14), the notification lottery probability (navigation rate) for the type notification of the winning SB in the chance 1 mode P1B is different, being 1/12 and 2/3, respectively. In ART (P14), although the number of times of ART is small, the navigation rate is larger than that of ART (P13), and it is possible to give the player an interest such as whether to distribute to (P13) or (P14). In this way, even if only a single type of BB is mounted, it is possible to vary the navigation rate in the journey to the high probability gaming state (P6) and to have a variation of game entertainment. At the start of operation, a bonus game does not occur unless at least the chance 1 mode P1B and the chance 2 mode P3 are passed. Therefore, it takes time (the number of games) until the first win is obtained. May decrease. Therefore, in the normal mode P1 immediately after the power is turned on, the shift to the chance 1 mode P1B having the same navigation rate as that of the ART (P14) is made, the operation is started, and the time until the first hit is obtained (number of games) is reduced. You may make it do.

In the slot machine A and the slot machine of FIG. 18, there is a possibility that a case of staying in the normal mode P1 for a long period of time rarely occurs unless at least the SB winning is generated in the chance 1 mode P1B. In order to alleviate such a case, it is preferable to appropriately perform forcible notification of the winning SB type according to the establishment of a predetermined game condition.
FIG. 18 shows a forced notification process of the winning SB type introduced in the normal mode P1. This forced notification process is performed by counting the number of executed games in the normal mode P1, and when the count value reaches a predetermined upper limit (888 times), the normal game state P1A is shifted to the navigation chance mode. .

When a game in the normal game state P1A that is not the chance 1 mode P1B is performed once, the game number counter is incremented by 1 and the number of continued games is counted (steps S80 to S83). The game number counter is provided in the RAM area of the main control unit. When an SB winning occurs in the normal gaming state P1A, the game number counter is reset, and the state shifts to the above-described SB accessory gaming state (chance 2 mode P3) (steps S84, S91, S92). In the normal gaming state P1A, when any of the winning combinations SB1 to SB3 does not occur and the number of counters reaches 888, the navigation chance mode is set (steps S84 to S86). In the navigation chance mode, when any one of SB1 to SB3 is won, its type is notified by sub-processing. Therefore, when the winning SB is not won until 888 times, the winning type is notified for the SB generated thereafter, so that it is possible to surely shift to the next chance 2 mode P3. That is, in the present invention, a single type of SB may be used in the normal gaming state and the chance 2 mode P3. However, in particular, when the SB combination having a different combination is used in the normal gaming state, On the condition that the game period that does not lead to the transition to the first specific game has reached a predetermined upper limit number of games, the winning type of the SB combination with the different combination (the first specific winning combination) is highly probable or 100 By providing a transition assist notification function for notifying%, it is possible to prevent the occurrence of special games from being excessively suppressed in the normal game state.

The forced notification process is also applied after the bonus has ended or after the transition to the chance 1 mode P1B due to a specific winning combination, and no SB winning has occurred during that mode (steps S80, S87 to S93). When the game in the chance 1 mode P1B is performed once, the game number counter is incremented by 1, the number of continuous games is counted, and is continued until the set mode number (50 times or 100 times) (steps S80, S87-). S89). As described above, when an SB prize is generated during the chance 1 mode P1B, the game number counter is reset, and the state shifts to the above-described SB accessory game state (chance 2 mode P3) (steps S90 to S92). . If no SB prize is generated during the chance 1 mode P1B and the game of the set mode number is consumed, the chance 1 mode P1B is reset to shift to the normal game state P1A, but the count value of the number of executed games is updated and used as it is. (Steps S93 and S81) After that, when the number of counters reaches 888, the navigation chance mode is set (Steps S84 to S86).

The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the illustrated embodiments, and various modifications and changes can be made within the same scope or equivalent scope as the present invention. It is possible to add deformation.

It is an external appearance perspective view of the slot machine A which concerns on one Embodiment of this invention. 3 is a diagram showing an electrical block configuration of the slot machine A. FIG. FIG. 3 shows a symbol array attached to reels 206a to 206c of the slot machine A. 4 is a schematic configuration diagram of an effect display unit 203 of the slot machine A. FIG. 4 is a schematic block diagram of an effect display control unit of the slot machine A. FIG. 21 is a flowchart showing an outline of a normal game process of a main control unit in the slot machine A. It is a flowchart which shows the detail of a lottery process. 4 is a view schematically showing correlation between a plurality of gaming states in the slot machine A. FIG. FIG. 25 shows a lottery table when the slot machine A is in a normal gaming state. FIG. 48 shows a lottery table when the slot machine A is in the chance 2 mode. FIG. 50 shows a lottery table when the slot machine A is in a high-probability gaming state. FIG. 14 shows a winning dividend table for the slot machine A. It is a flowchart which shows the main game process at the time of the said high probability game state. 42 is a flowchart showing bonus game processing for BB or RB in the slot machine A. FIG. It is a flowchart which shows the game processing based on the correlation between the game states shown in FIG. FIG. 16 is a flowchart for continuing the game process of FIG. 15. FIG. It is a figure which shows typically the correlation of game state in the slot machine which concerns on another embodiment. It is a flowchart of the forced alerting | reporting process of winning SB classification in the normal game state which concerns on this invention. FIG. 4 is a diagram schematically showing various notification display screen examples in the slot machine A.

Explanation of symbols

A slot machine, 201 housing, 202 front door, 203 effect display device,
204 upper speaker, 205 light emitting unit, 206a-206c reel,
207 window, 208 betting number setting switch, 208a 1 bet switch,
208b MAX bet switch, 209 indicator, 210 medal slot,
211 Start switch, 212a-212c Stop switch,
216 medal payout exit, 217 lower speaker, 218 ashtray,
219 medal storage tray, 300 control unit, 301 main control unit,
302 first sub-control unit, 303 second sub-control unit, 304 relay board,
305 CPU, 306 ROM, 307 RAM,
311 lottery table storage unit, 317 number storage unit,
318 interface, 318A interface, 319 operation unit,
320 medal detection sensor, 321 setting change unit, 322 front door opening detection unit, 323 driver circuit, 324 reel drive unit, 324a left reel drive unit, 324b middle reel drive unit, 324c right reel drive unit,
325 door opening alarm, 326 abnormality alarm lamp,
328a Stop selection switch, 328b Settlement selection switch,
329a Door opening sensor, 330 driver circuit, 331 CPU,
332 ROM, 333 RAM, 334 Driver circuit

Claims (3)

It is provided with a spinning display unit that variably displays a plurality of symbols, and after setting a betting number of game media necessary for a player to perform a spinning game, the start operation of the spinning display unit is used as the lottery opportunity, A winning combination deciding means for performing lottery based on a lottery probability of a predetermined lottery table and determining one of a plurality of winning combinations and replays determined in advance according to the lottery result, and a player's stop operation Corresponding to the winning combination determined by the winning combination determining means and the stop mode of the symbol stopped by the rotating stop control unit Control means comprising a winning determination means for determining that the winning combination is established when the display mode of the symbol to be played is established, and a probability setting means for setting the lottery table for each gaming state, the plurality of winning combinations There are multiple types In addition to the general winning combination, a special winning combination that gives a special game advantageous to the player after winning a prize, and a specific winning combination that gives a specific game that can be executed fewer times than the special game are included. After the end, it is a slot machine that transitions to the normal gaming state,
The probability setting means is used in the normal gaming state, and is used in a special lottery table in which the lottery probability value of the special winning combination is set to 0 or a predetermined value close thereto, and in a specific gaming state by the specific winning combination, A special game lottery table in which the lottery probability value of the special winning combination is set to a value equal to or greater than the combined probability value of the plurality of types of general winning combinations, and the control means includes the specific winning combination A slot machine that switches from the normal lottery table to the specific game lottery table on condition that a specific game is generated by winning. As the specific winning combination, at least two types of first and second specific winning combinations that give a specific game having a smaller number of game executions than the special game by winning,
In the normal lottery table, the lottery probability value of the special winning combination is set to 0 or a predetermined value close thereto, and the lottery probability value of the first specific winning combination is based on the lottery probability value of the second specific winning combination. In the specific game lottery table, the lottery probability value of the special winning combination is set to 0 or a predetermined value close thereto, and the lottery probability value of the second specific winning combination is the first specific winning combination. The first specific game lottery table set to be larger than the lottery probability value and the lottery probability value of the special winning combination is set to a value equal to or greater than the combined probability value of the plurality of types of general winning combinations. The control means switches from the normal lottery table to the first specific game lottery table on condition that a specific game is generated by winning the first specific winning combination. Instead, the the second condition that a particular game generated according to the winning of a particular winning combination, the first switch from the particular game lottery table in said second specific game lottery table, the slot machine according to claim 1. 3. The slot machine according to claim 1, wherein the specific game is a single bonus game that is executed only for a game next to a game won by the specific winning combination.

Images