US20050020349A1 - Gaming machine - Google Patents

Gaming machine Download PDF

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Publication number
US20050020349A1
US20050020349A1 US10/895,068 US89506804A US2005020349A1 US 20050020349 A1 US20050020349 A1 US 20050020349A1 US 89506804 A US89506804 A US 89506804A US 2005020349 A1 US2005020349 A1 US 2005020349A1
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United States
Prior art keywords
symbol
variable display
stopped
reel
red
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US10/895,068
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English (en)
Inventor
Motoaki Tachikawa
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Universal Entertainment Corp
Original Assignee
Aruze Corp
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Assigned to ARUZE CORP. reassignment ARUZE CORP. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TACHIKAWA, MOTOAKI
Publication of US20050020349A1 publication Critical patent/US20050020349A1/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
    • G07F17/3202—Hardware aspects of a gaming system, e.g. components, construction, architecture thereof
    • G07F17/3204—Player-machine interfaces
    • G07F17/3211—Display means
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
    • G07F17/326—Game play aspects of gaming systems
    • G07F17/3267—Game outcomes which determine the course of the subsequent game, e.g. double or quits, free games, higher payouts, different new games

Definitions

  • the present invention relates to a gaming machine which gives predetermined benefit to a player when symbols on a plurality of variable display portions stop along a pay line.
  • the present invention relates to a gaming machine such as a slot machine in which a display mode of the symbols stopped on the variable display portions can be changed.
  • the present invention relates to a gaming machine which is constructed so that one partial symbol obtained by dividing a complete symbol is stopped on the last variable display portion and thereafter the other partial symbol forming the complete symbol with the one partial symbol is stopped on the last variable display portion when the complete symbol is stopped on the last variable display portion.
  • Japanese Unexamined Publication No. 11-244453 it is disclosed a slot machine which is constructed so that after a game is started, not only combination lottery of symbol marks formed on each of three reels is conducted but also lottery of pay lines is done. Further, in the slot machine, the reels are automatically rotated and stopped after game condition shifts to a free game, thereafter coins are paid out according to a game result.
  • the present invention has bee done to accomplish the above problems and has an object to provide a gaming machine in which the symbols stopped on the variable display portions are at first displayed in an unrecognizable state and thereafter displayed in a recognizable state based on a predetermined trigger, thereby it can make the player have expectation for games till the predetermined trigger occurs.
  • a gaming machine including a variable display device in which a plurality of variable display portions conducting variable display of symbols are provided, the gaming machine giving a payout when the symbols variably displayed on each of the variable display portions are stopped along a pay line with a symbol combination corresponding to a predetermined winning combination,
  • variable display controller stops and displays predetermined symbols forming the symbol combination corresponding to the predetermined winning combination on all of the variable display portions except for one variable display portion among the plural variable display portions, and the variable display controller displays a predetermined symbol on the one variable display portion in a first mode in which the predetermined symbol combination becomes unrecognizable, and further the variable display controller displays the predetermined symbol on the one variable display portion in a second mode in which the predetermined symbol combination becomes recognizable after a predetermined time is elapsed. Therefore, since the winning combination cannot be recognized until the first mode is changed to the second mode, it can make the player have expectation for games during the first mode and the second mode.
  • the present invention has an object to provide a gaming machine which is constructed so that one partial symbol obtained by dividing a complete symbol is stopped on the last variable display portion and thereafter the other partial symbol forming the complete symbol with the one partial symbol is stopped on the last variable display portion when the complete symbol is stopped on the last variable display portion among a plurality of variable display portions, thereby interest for games can be maintained during a period after the one partial symbol is stopped till the other partial symbol is stopped.
  • a gaming machine including a variable display device in which a plurality of variable display portions conducting variable display of symbols are provided, the gaming machine giving a payout when the symbols variably displayed on each of the variable display portions are stopped along a pay line with a symbol combination corresponding to a predetermined winning combination,
  • variable display controller stops and displays predetermined symbols forming the symbol combination corresponding to the predetermined winning combination on all of the variable display portions except for one variable display portion among the plural variable display portions, and the variable display controller displays a first divisional symbol forming a predetermined symbol with a second divisional symbol on the one variable display portion, and further the variable display controller displays the second divisional symbol on the one variable display portion while the first divisional symbol is displayed on the one variable display portion.
  • the winning combination when the winning combination is won, the winning combination cannot be recognized yet at the time that the first divisional symbol is stopped and the winning combination can be recognized for the first time when the second divisional symbol is stopped, since the predetermined symbol lastly stopped can be recognized by combining the first divisional symbol and the second divisional symbol. As a result, expectation of the player can be highly maintained until the second divisional symbol is stopped since the first divisional symbol is stopped.
  • a gaming machine comprising:
  • variable display controller stops and displays predetermined symbols forming the symbol combination corresponding to the predetermined winning combination, by cooperation of each reel and each variable display portion of the liquid crystal display. Therefore, since the predetermined symbols forming the symbol combination corresponding to the predetermined winning combination are stopped by cooperation of each reel and each variable display portion of the liquid crystal display, variegated effect can be conducted.
  • FIG. 1 is a perspective view of the slot machine
  • FIG. 2 is a longitudinal sectional view of the lower liquid crystal display and the reel
  • FIG. 3 is an exploded perspective view of the lower liquid crystal display
  • FIG. 4 is an explanatory view showing symbol rows which are variably displayed on variable display portions, the symbol rows being displayed on the lower liquid crystal display when the base game is conducted,
  • FIG. 5 is a block diagram showing a control system of the slot machine
  • FIG. 6 is a block diagram schematically showing a liquid crystal drive circuit of the lower liquid crystal display
  • FIG. 7 is an explanatory view showing a winning combination lottery table in the base game conducted by using five variable display portions, in the first embodiment,
  • FIG. 8 is an explanatory view showing the pay line patterns in the base game conducted by using five variable display portions
  • FIG. 9 is a flowchart of a main program
  • FIG. 10 is a flowchart of a program utilized in a base game process
  • FIG. 11 is an explanatory view showing symbol rows displayed on the variable display portions, the symbol rows being displayed on the reels and seen through the lower liquid crystal display in a free game
  • FIG. 12 an explanatory view showing a lottery table to determine whether “colorless effect” is done or not in a case that the free game is conducted by using three variable display portions,
  • FIG. 13 is an explanatory view showing a lottery table to determine the reel conducting the “colorless effect” in a case that the free game is conducted by using the three variable display portions,
  • FIG. 14 is an explanatory view showing a winning combination lottery table when the free game is conducted by using three variable display portions
  • FIG. 15 is a flowchart of a free game process
  • FIG. 16 is an explanatory view showing a flow of the “colorless effect” and the pattern of the pay line in a case that the free game is conducted by using three variable display portions,
  • FIG. 17 is an explanatory view showing a flow of the “colorless effect” and the pattern of the pay line in a case that the free game is conducted by using three variable display portions,
  • FIG. 18 is an explanatory view showing a flow of the “colorless effect” and the pattern of the pay line in a case that the free game is conducted by using three variable display portions,
  • FIG. 19 is an explanatory view schematically showing the reels utilized in the free game and the symbol rows on the variable display portions
  • FIG. 19A is an explanatory view schematically showing the symbol rows formed on three reels
  • FIG. 19B is an explanatory view schematically showing the symbols variably displayed on the variable display portion corresponding to the right reel, in the second embodiment
  • FIG. 20 is an explanatory view showing a winning combination lottery table in the free game
  • FIG. 21 is a flowchart of a main process program
  • FIG. 22 is a flowchart of a base game process program
  • FIG. 23 is a flowchart of a free game process program
  • FIG. 24 is an explanatory view schematically showing a state of the symbols displayed on the reels and the variable display portions when the winning combination RED7-RED7-TRIPLE is won in the free game
  • FIG. 25 is an explanatory view showing a lottery table to determine the symbol stopped and displayed on the pay line every variable display portion
  • FIG. 26 is an explanatory view showing a lottery table to determine the symbol stopped and displayed on the pay line every variable display portion
  • FIG. 27 is a code table in which each symbol and a code number is corresponded
  • FIG. 28 is a lottery table in which a code number of the symbol in each symbol row and a random number are corresponded, and
  • FIG. 29 is a lottery table in which select probability of each symbol is unevenly allotted.
  • FIG. 1 is a perspective view of the slot machine.
  • the slot machine 1 has a cabinet 2 constructing a whole of the slot machine 1 .
  • an upper liquid crystal display 3 is arranged, and at a front central part of the cabinet 2 a lower liquid crystal display 4 is arranged.
  • the upper liquid crystal display 3 is constructed from a liquid crystal display device which is generally used, and the lower liquid crystal display 4 is constructed from, so-called, a transparent liquid crystal display device.
  • game operation method kinds of winning combinations and payout therefor and information concerning with the game such as various effects thereof are displayed.
  • the lower liquid crystal display 4 as shown in FIG.
  • variable display portions 21 , 22 , 23 , 24 , and 25 are basically displayed and various symbols (mentioned later) are scrolled to the downward direction from the upward direction while being variably displayed on each of the variable display portions 21 to 25 .
  • the detailed construction of the lower liquid crystal display 4 will be described hereinafter.
  • a control panel 5 which is projected frontward, is formed below the lower liquid crystal display 4 , and from the most left side on the control panel 5 , a change button 6 , a payout (cashout) button 7 , a help button 8 are arranged. And a coin insertion slot 9 and a bill insertion portion 10 are arranged at the right side of help button 8 . Further, from the left side, a 1-BET button 11 , a SPIN/REPEAT BET button 12 , a 3-BET button 13 and a 5-BET button 14 are positioned at the front side on the control panel 5 .
  • the change button 6 is pressed when exchanging the bill inserted in the bill insertion portion 10 , and the exchanged coins are paid out through a coin payout chute 15 to a coin tray 16 which is formed at the lower part of the cabinet 2 .
  • a change switch 62 (explained hereinafter) is attached, and a switch signal is output to a CPU 50 from the change switch 62 based on press of the change button 6 .
  • the payout button 7 is usually pressed when games are terminated, and when the payout button 7 is pressed coins got in games are paid out through the coin payout chute 15 to the coin tray 16 .
  • a payout (cashout) switch 63 (mentioned hereinafter) is attached and a switch signal is output to the CPU 50 from the payout switch 63 based on press of the payout button 7 .
  • the help button 8 is pressed when the player cannot understand game operation method, and when the help button 8 is pressed, various help information is displayed on the upper liquid crystal display 3 or the lower liquid crystal display 4 .
  • a help switch 64 (mentioned hereinafter) is attached and a switch signal is output to the CPU 50 from the help switch 64 based on press of the help button 8 .
  • a coin sensor 65 (mentioned hereinafter) is positioned, and when the coin is inserted in the coin insertion slot 9 a coin detection signal is output to the CPU 50 through the coin sensor 65 .
  • a bill sensor 66 (mentioned herein after) is positioned, and when the bill is inserted in the bill insertion portion 10 a bill detection signal is output to the CPU 50 through the bill sensor 66 .
  • the 1-BET button 11 every the 1-BET button is pressed one credit is betted, and to the 1-BET button 11 , a 1-BET switch 59 is attached and when the 1-BET button 11 is pressed a switch signal is output to the CPU 50 from the 1-BET switch 59 based on press of the 1-BET button 11 .
  • the SPIN/REPEAT BET button 12 is the button to start games from the present bet number or the previous bet number by press thereof, thereby variable display of the symbols is started on the variable display portions 21 to 25 of the lower liquid crystal display 4 .
  • a spin switch 58 (mentioned later) is attached, and when the SPIN/REPEAT BET button 12 is pressed a switch signal is output to the CPU 50 from the spin switch 58 based on press of the SPIN/REPEAT BET button 12 .
  • the bet number which can be betted by press of the SPIN/REPEAT BET button 12 there may exist 1, 2, 3 and 5 bets.
  • the 3-BET button 13 is the button to start games from 3 bets on the basis of press thereof.
  • a 3-BET switch 60 (mentioned hereinafter) is attached and when the 3-BET button 13 is pressed a switch signal is output to the CPU 50 from the 3-BET switch 60 .
  • the 5-BET button 14 is the button to start games from 5 bets on the basis of press thereof.
  • a 5-BET switch 61 is attached and when the 5-BET button is pressed a switch signal is output to the CPU 50 from the 5-BET switch 61 on the basis of press thereof.
  • the coin payout chute 15 is formed and the coin tray 16 to receive coins paid out from the coin payout chute 15 is provided.
  • a coin detection part 73 constructed from a sensor and the like is positioned and the coin detection part 73 detects the number of coins paid out from the coin payout chute 15 .
  • stop buttons 26 to 30 are provided corresponding to each of the variable display portions 21 to 25 , respectively.
  • stop buttons are pressed when the symbols, which are scrolled on the variable display portions, are stopped and displayed thereon, the symbols cannot be stopped at timing of the press operation of the stop buttons 26 to 30 .
  • the switch signal output from the stop button switch 67 based on press of each of the stop buttons 26 to 30 is utilized to the end only as a trigger when the symbols scrolled on the variable display portions are stopped and displayed.
  • a start lever 17 is arranged rotatably within a predetermined angle range.
  • a start switch 57 (mentioned hereinafter) is attached and when the start lever 17 is rotated a switch signal occurring from the start switch 57 is output to the CPU 50 .
  • FIG. 2 is a longitudinal sectional view of the lower liquid crystal display and the reels
  • FIG. 3 is an exploded perspective view of the lower liquid crystal display 4 .
  • the lower liquid crystal display 4 is arranged within a display window 21 of a device front panel 20 positioned at the front center part of the cabinet 2 in the slot machine 1 , with a touch panel 300 arranged at the front side (the left side in FIG. 2 ) of the lower liquid crystal display 4 .
  • a touch panel 300 arranged at the front side (the left side in FIG. 2 ) of the lower liquid crystal display 4 .
  • three reels 220 are supported in a parallel state so that the reels 220 become independently rotatable.
  • each reel 220 will be described.
  • the left reel 220 when seeing the front plane of the slot machine 1 faces to a display portion 22 (see FIG. 1 ) formed in the lower liquid crystal display 4
  • the center reel 220 faces to a display portion 23 (see FIG. 1 ) similarly formed in the lower liquid crystal display 4
  • the right reel 220 faces to a display portion 24 (see FIG. 1 ) similarly formed in the lower liquid crystal display 4
  • no reel 220 faces to a variable display portion 21 and a variable display portion 25 (see FIG. 1 ).
  • each reel 220 various kinds of symbols shown in FIG. 11 (four kinds of symbols are indicated in FIG. 11 ) are formed, such symbols being used in a free game explained hereinafter.
  • a DOUBLE symbol 195 As kinds of symbols formed on the outer periphery of the reel 220 , a DOUBLE symbol 195 , a RED 7 symbol 191 , a BLUE 7 symbol 192 and a COLORLESS 7 symbol 193 are utilized.
  • the pay line L 2 is determined to only the center line, and such pay line L 2 is displayed on the lower liquid crystal display 4 when free game, in which at first each of the reels 220 is automatically rotated and continuously stopped based on press operation of the stop buttons 26 to 30 , is conducted.
  • the COLORLESS 7 symbol 193 can be colored in red color or blue color by the lower liquid crystal display 4 , thereby there may be a case that the COLORLESS 7 symbol 193 is changed to the RED 7 symbol 191 or the BLUE 7 symbol 192 .
  • the lower liquid crystal display 4 is constructed by arranging from the front side of the slot machine 1 ; the transparent touch panel 300 , the reel glass base 31 , the bezel metal frame 32 , the transparent liquid crystal panel 33 , the liquid crystal holder 34 , the diffusion sheet 35 , the light guiding plate 36 , the white reflector 37 , the rear holder 38 and the antistatic sheet 39 .
  • the diffusion sheet 35 three openings 35 A, 35 B, 35 C, 35 D, 35 E are formed.
  • the openings 35 A ⁇ 38 A construct the variable display portion 21 (see FIG. 1 ) by superimposing so as to coincide with each other.
  • the openings 35 B ⁇ 38 B construct the variable display portion 22 (see FIG. 1 ) by superimposing so as to coincide with each other and the openings 35 C ⁇ 38 C construct the variable display portion 23 (see FIG.
  • variable display portion 24 by superimposing so as to coincide with each other
  • openings 35 D ⁇ 38 D construct the variable display portion 25 (see FIG. 1 ) by superimposing so as to coincide with each other.
  • the openings 35 A ⁇ 35 E of the diffusion sheet 35 and the openings 36 A ⁇ 36 E of the light guiding plate 36 construct the light transmitting areas to retain visibility of the variable display portions 21 to 25 .
  • brackets 40 are screwed to the rear side of the device front panel 20 by screws 410 .
  • a pair of cathode ray tubes 420 are arranged as light source of the liquid crystal panel 33 .
  • a pair of cold cathode ray tubes 430 may be arranged.
  • the liquid crystal panel 33 is a transparent electric display panel on which transparent electrodes such as Ito are formed, and the circumference in rear side of the display portion of the liquid crystal panel 33 is held by the liquid crystal holder 34 .
  • the light guiding plate 36 is made of the light transmitting resin panel, and in the light guiding plate 36 lens cut portions are formed, the lens cut portions guiding light emitted from the cathode ray tubes 420 positioned at side positions to the rear side of the liquid crystal panel 33 .
  • the light diffusion sheet 35 is made from a light transmitting resin sheet and diffuses light led thereto by the light guiding plate 36 and levels light irradiated to the liquid crystal panel 33 .
  • the liquid crystal holder 34 for holding the liquid crystal panel 33 , the diffusion sheet 35 and the light guiding plate 36 are assembled into one-piece construction and circumference thereof is inserted in the bezel metal frame 32 . Thereby, the front side of the display portion in the liquid crystal panel 33 is retained by the bezel metal frame 32 .
  • Circumferences of the liquid crystal holder 34 , the light diffusion sheet 35 and the light guiding plate 36 which are inserted in the bezel metal frame 32 and assembled into one-piece construction, is further inserted in the reel glass base 31 and retained by the reel glass base 31 in a state that the front display plane of the liquid crystal panel 33 is opened.
  • the transparent touch panel 300 is pressed to the front face of the reel glass base 31 and superimposed on the front face of display portion of the liquid crystal panel 33 based on that the reel glass base 31 is attached to the device front panel 20 by screws 410 .
  • the rear holder 38 is made from a white resin plate and retains to the reel glass base 31 the bezel metal frame 32 supported to the reel glass base 31 , the liquid crystal holder 34 holding the liquid crystal panel 33 , the light diffusion sheet 35 and the light guiding plate 36 from the rear sides thereof.
  • the rear holder 38 also functions as a reflecting plate for reflecting light emitted from the cathode ray tubes 420 to the light guiding plate 36 toward the liquid crystal panel 33 .
  • the antistatic sheet 39 is made transparent and adhered to the rear plane of the rear holder 38 by double-sided adhesive tape, thereby the antistatic sheet 39 covers the rear plane of each of the openings 38 A ⁇ 38 E formed in the rear holder 38 .
  • the symbol row 41 is the symbol row which is variably displayed on the variable display portion 21
  • the symbol row 42 is the symbol row which is variably displayed on the variable display portion 22
  • the symbol row 43 is the symbol row which is variably displayed on the variable display portion 23
  • the symbol row 44 is the symbol row which is variably displayed on the variable display portion 24
  • the symbol row 45 is the symbol row which is variably displayed on the variable display portion 29 .
  • the symbol rows 41 , 42 , 44 and 45 commonly have the same arrangement of the symbols and such arrangement of the symbols is constructed from eleven symbols in which the triple BAR 91 , the cherry 92 , the double BAR 93 , the symbol seven 94 , the single BAR 95 and the blank (no symbol exists) 96 are voluntarily combined.
  • one joker 97 as the trigger symbol is further arranged in the symbol row 43 .
  • This joker 97 functions as a symbol to shift to the free game in the base game, and when the joker 97 is stopped and displayed on the pay line (mentioned later) in the variable display portion 23 , the game condition shifts to the free game from the base game.
  • FIG. 5 is a block diagram schematically showing the control system in the slot machine 1 .
  • the control system of the slot machine 1 is basically constructed from the CPU 50 , and a ROM 52 and a RAM 52 are connected to the CPU 50 .
  • the ROM 51 stores main process program mentioned later, various effect programs for executing various effects on the upper liquid crystal display 3 and the lower liquid crystal display 4 according to progress in games, a lottery table utilized in lottery of the winning combination in the base game, a lottery table utilized in lottery of the winning combination corresponding to the free game, a lottery table to determined whether the “colorless effect” is done or not, a lottery table to determine the reel 220 in which the colorless 7 symbol 193 is utilized, pay line patterns utilized in the base game or the free game, various programs necessary for controlling the slot machine 1 and various data tables and the like.
  • the RAM 52 is a memory for temporarily storing various data calculated by the CPU 50 .
  • a clock pulse generator 53 for generating standard clock pulses and a frequency divider 54 are connected, and a random number generator 55 and a sampling circuit 56 are also connected. Random number sampled by the random number generator 56 is utilized in various lotteries of the winning combinations, the effects and the like.
  • the CPU 50 controls the slot machine 1 to execute various operations corresponding to each button, based on the switch signal output from each switch when such buttons are pressed.
  • each stepping motor 68 for rotating each of the reels 220 through a motor drive circuit 167 are connected, and also a reel position detection circuit 69 is connected.
  • a motor drive signal is output to the motor drive circuit 167 , each stepping motor 68 is driven to rotate by the motor drive circuit 167 , thereby each reel 220 is rotated.
  • the number of drive pulses provided to each stepping motor 68 is calculated and the calculated value is written in the predetermined area of the RAM 52 .
  • the reset pulse is output every one rotation of the reel 220 and such reset pulse is input to the CPU 50 through the reel position detection circuit 69 .
  • the CPU 50 recognizes the symbol rotational position in the reel 220 , based on the calculated value corresponding to the rotational position of the reel 220 within one rotation and the symbol table in which the rotational position of the reel 22 stored in the ROM 51 and the symbols formed on outer peripheral plane of the reel 22 are corresponded with each other.
  • the coin sensor 65 positioned in the coin insertion slot 9 and the bill sensor 66 positioned in the bill insertion portion 10 are connected respectively.
  • the coin sensor 65 detects coins inserted from the coin insertion slot 9 and the CPU 50 calculates the number of inserted coins based on the coin detection signal output from the coin sensor 65 .
  • the bill sensor 66 detects the kind and sum of bill and the CPU 50 calculates the number of coins equivalent to sum of bill, based on the bill detection signal output from the bill sensor 66 .
  • the stop button switches 67 attached to the stop buttons 26 to 30 are connected. When press operation of the stop buttons 26 to 30 is conducted, switch signals are output from the stop button switches 67 and the CPU 50 stops and display the symbols which are scrolled on the variable display portions 21 to 25 , based on switch signals.
  • a hopper 71 is connected to the CPU 50 .
  • the hopper 71 pays out predetermined number of coins from the coin payout chute 15
  • a coin detection part 73 is connected through a payout completion signal circuit 72 .
  • the coin detection part 73 is arranged in the coin payout chute 15 and when the coin detection part 73 detects that a predetermined number of coins are paid out from the coin payout chute 15 , the payout completion signal is output to the payout completion signal circuit 72 from the coin detection part 73 . Based on this, the payout completion signal circuit 72 outputs the payout completion signal to the CPU 50 .
  • the upper liquid crystal display 3 is connected through a liquid crystal drive circuit 74 and the lower liquid crystal display 4 is connected through a liquid crystal drive circuit 75 .
  • the liquid crystal drive circuit 74 is constructed from a program ROM 81 , an image ROM 82 , an image control CPU 83 , a work RAM 84 , a VDP (Video Display Processor) 85 and a video RAM 86 .
  • the program ROM 81 an image control program concerning with display on the lower liquid crystal display 4 and various selection tables are stored.
  • the image ROM 82 for example, it is stored dot data for forming images such as the symbol rows 41 ⁇ 45 in FIG. 4 displayed on the lower liquid crystal display 4 (or variable display portions 21 to 25 ).
  • the image control CPU 83 determines images displayed on the lower liquid crystal display 4 among the dot data stored in the image ROM 82 beforehand, according to the image control program stored in the program ROM 81 based on parameters set by the CPU 50 .
  • the work RAM 84 functions is the temporary memory when the above image control program is executed by the image control CPU 83 .
  • the VDP 85 forms images corresponding to display contents determined by the image control CPU 83 and outputs the images to the lower liquid crystal display 4 . Thereby, for example, the symbol rows 41 ⁇ 45 of FIG. 4 and the symbol rows 41 ⁇ 45 of FIGS. 11 and 13 are scrolled and displayed on the lower liquid crystal display 4 (or variable display portions 21 to 25 ).
  • the video RAM 86 functions as the temporary memory when images are formed by the VDP 85 .
  • LEDs 78 are connected through a LED drive circuit 77 .
  • a plurality of LEDs 78 are arranged on the front plane of the slot machine 1 and the LEDs 78 are controlled so as to turn on based on the drive signals from the CPU 50 .
  • a speaker 80 and a sound output circuit 79 are connected to the CPU 50 and the speaker 80 produces various effective sounds when various effects are conducted based on the output signal from the sound output circuit 79 .
  • FIG. 7 is an explanatory view showing the lottery table of the winning combination utilized in the base games by using five variable display portions
  • FIG. 8 is an explanatory view showing the pay line pattern utilized in the base game by using five variable display portions.
  • a range of random number values utilized in the lottery table of the winning combination lie within 0-16383.
  • the free game is triggered.
  • the joker 97 is stopped and displayed on the pay line in the variable display portion 23 and the game condition can be shifted to the free game.
  • the free game is a game conducted after the base game is done and is generally beneficial for the player in many cases. For example, when the game condition shifts to the free game, games are continuously done during 10 games, 20 games or 30 games, corresponding rank of the free game. At that time, in the free game, winning probability for winning various winning combinations is generally set high, therefore the player can get a lot of coins in many cases.
  • the winning combination of the seven (7) is won.
  • the symbol seven 94 is stopped and displayed on the pay line in each of the variable display portions 21 to 25 .
  • the winning combination of the triple BAR is won.
  • the triple BAR 91 is stopped and displayed on the pay line in each of the variable display portions 21 to 25 .
  • the random number value sampled lies in a range of 32 ⁇ 63, the winning combination of the double BAR is won.
  • the double BAR 93 is stopped and displayed on the pay line in each of the variable display portions 21 to 25 .
  • the random number value lines in a range ofd 64 ⁇ 255 the winning combination of the single BAR is won.
  • the single BAR 95 is stopped and displayed on the pay line in each of the variable display portions 21 to 25 .
  • the random number value sampled lies in a range of 256 ⁇ 511, the winning combination of the cherry is won.
  • the cherry 92 is stopped and displayed on the play line in each of the variable display portions 21 to 25 .
  • the pattern of the pay line in a case that the base game is done by using five variable display portions 21 to 25 will be described with reference to FIG. 7 .
  • the top line L 1 , the center line L 2 , the bottom line L 3 , the cross down-cross up line LA obtained by combining the cross down line and the cross up line and the cross up-cross down line L 5 obtained by combining the cross up line and cross down are made active.
  • FIG. 14 is an explanatory view showing the winning combination lottery table used when the free game is done through the three variable display portions
  • FIGS. 16 ⁇ 18 explanatory views showing the pattern of the pay line used when the free game is done through three variable display portions.
  • the range of the random number values lies within 0 ⁇ 1127, and if the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 5, the winning combination of the red 7-red 7-DO is won. In this case, the red 7 symbol 191 , the red 7 symbol 191 and the double symbol 195 are stopped on the pay line in this order. Similarly, if the random number value sampled by the random number sampling circuit 56 lies in a range of 6 ⁇ 10, the winning combination of the blue 7-blue 7-do is won. In this case, the blue 7 symbol 192 , the blue 7 symbol 192 and the double symbol 195 are stopped on the pay line in this order.
  • the red 7 symbol 191 , the red 7 symbol 191 and the red 7 symbol 191 are stopped and displayed on the pay line (see FIG. 17 ).
  • the red 7 symbol 191 is once stopped and displayed by the colorless 7 symbol 193 (see FIG. 16 ) and after, for example, 0.5 seconds are elapsed, red color is displayed on the lower liquid crystal display 4 , thereby it is conducted the effect to give an impression as if the colorless 7 symbol 193 is changed to the red 7 symbol 191 as shown in FIG. 17 (called the “colorless effect” hereinafter). This point will be described hereinafter.
  • the winning combination of the blue 7-blue 7-blue 7 is won.
  • the blue 7 symbol 192 , the blue 7 symbol 192 and the blue 7 symbol 192 are stopped and displayed on the pay line.
  • any one of the blue 7 symbols 192 is once stopped and displayed by the colorless 7 symbol 193 (see FIG. 16 ) and after, for example, 0.5 seconds are elapsed, blue color is displayed on the lower liquid crystal display 4 , thereby it is conducted the effect to give an impression as if the colorless 7 symbol 193 is changed to the blue 7 symbol 192 as shown in FIG. 18 (this effect is as same as the effect mentioned in the above). This point will be described hereinafter.
  • the random number value lies in a range of 33 ⁇ 127, it leads to loss of winning combination.
  • symbol combination other than the winning combination is stopped and displayed on the pay line in each of the variable display portions 22 to 24 .
  • the red 7 symbol 191 , the red 7 symbol 191 and the blank (area that no symbol exists) 194 are stopped and displayed on the pay line, or the blue 7 symbol 192 , the blue 7 symbol 192 and the blank 194 are stopped and displayed on the pay line, or the red 7 symbol 191 , the red 7 symbol 191 and the blue 7 symbol 192 are stopped and displayed on the pay line, or the blue 7 symbol 192 , the blue 7 symbol 192 and the red 7 symbol 191 are stopped and displayed on the pay line.
  • FIG. 12 is an explanatory view showing the lottery table to determine whether the “colorless effect” is done or not when the free game is conducted by using three variable display portions
  • FIG. 13 is an explanatory view showing the lottery table to determine the reel in which the “colorless effect” is done when the free game is conducted by using three variable display portions.
  • the range of the random number values utilized in the lottery table to determine whether the “colorless effect” is done or not lies within 0 ⁇ 127. And in a case that the winning combination of the red 7-red 7-red 7 is won, if the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 102, the “colorless” effect is done, and if the random number value sampled by the random number sampling circuit 56 lies in a range of 103 ⁇ 127, the “colorless” effect is not done.
  • the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 15, the “colorless effect” is done, and if the random number value sampled by the random number sampling circuit 56 lies in a range of 16 ⁇ 127, the “colorless effect” is not done.
  • the blue 7 symbol 192 , the blue 7 symbol 192 and the red 7 symbol 191 are stopped and displayed on the pay line if the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 35, the “colorless effect” is done, and if the random number value sampled by the random number sampling circuit 56 lies in a range of 36 ⁇ 127, the “colorless effect” is not done.
  • the “colorless effect” is not done.
  • the range of the random number values utilized in the lottery table to determine the reel in which the “colorless effect” is done lies within 0 ⁇ 127.
  • the “colorless effect” is done by utilizing the colorless 7 symbol 193 formed on the left reel 220
  • the “colorless effect” is done by utilizing the colorless 7 symbol 193 formed on the center reel 220
  • the “colorless effect” is done by utilizing the colorless 7 symbol 193 formed on the center reel 220
  • the random number value sampled by the random number sampling circuit 56 lies in a range of 43 ⁇ 63
  • the “colorless effect” is done by utilizing the colorless 7 symbol 193 formed on the right reel 220 .
  • rotation of the above reel 220 may be first or second stopped if it is done the effect as if the colorless 7 symbol 193 is changed to the red 7 symbol or the blue 7 symbol, after rotation of all reels 220 is stopped.
  • FIG. 8 is a flowchart of the main process program.
  • S start acceptance process
  • This start acceptance process is the process to receive the switch signal output from the start switch 57 , the spin switch 58 , the 1-BET switch 59 , the 3-BET switch 60 or the 5-BET switch 61 , based on operation of the start lever 17 , the SPIN/REPEAT BET button 12 , the 1-BET button 11 , the 3-BET button or the 5-BET button 14 .
  • the game is started.
  • the lottery process is done based on the switch signal output from the start switch 57 , the spin switch 58 , the 1-BET switch 59 , the 3-BET switch 60 or the 5-BET switch 61 .
  • the lottery of the winning combination in the base game is conducted by using the lottery table shown in FIG. 7 .
  • the number of times that the free games are continuously executed is determined, and such number of times is selected, for example, among 10 games, 20 games and 30 games by the lottery.
  • FIG. 10 is a flowchart of the base game process program. After the lottery process in S 12 of the main process program shown in FIG. 9 is done, the base game is conducted. First, procedure shifts to S 21 in FIG. 10 and the symbols are scrolled on each of the variable display portions 21 to 25 based on the switch signal output from the start switch 57 , the spin switch 58 , the 1-BET switch 59 , the 3-BET switch 60 or the 5-BET switch 61 , which is received in S 11 in FIG. 9 .
  • each of the stop buttons 26 to 30 has no relation with so-called “observation push” which is done for purpose to allow technical intervention by the player.
  • the switch signal output from each of the stop buttons 26 to 30 is used to the end only as the trigger when the symbols scrolled on the variable display portions 21 to 25 are stopped and displayed thereon. Therefore, the symbols on each of the variable display portions 21 to 25 are stopped and displayed thereon based on only the lottery result obtained in S 12 of FIG. 9 .
  • FIG. 15 is a flowchart of the free game process program. If it is determined that the free game is triggered in S 14 in the main process program shown in FIG. 9 (S 14 : YES), procedure shifts to S 15 of FIG. 9 and the free game is conducted. At first, procedure shifts to S 31 in FIG. 15 and the lottery during the free game is done. Concretely, at the timing that procedure shifts to S 31 , the random number value is obtained and the winning combination lottery in the free game is conducted based on the obtained random number value by utilizing lottery table shown in FIG. 14 .
  • the “colorless effect” process is done in S 32 .
  • rotation of the reels 220 other than the reel 220 determined in S 34 is automatically stopped and if any one of the stop buttons 26 to 30 is pressed by the player, rotation of the reel 220 determined in S 34 is stopped by utilizing the switch signal output from any one of the stop buttons 26 to 30 as the trigger. At that time, rotation of the reel 220 determined in S 34 is stopped after the other reels 220 are automatically stopped.
  • the colorless 7 symbol 193 on the center reel 220 (variable display portion 23 ) is stopped and displayed along the pay line L 2 after the red 7 symbol 191 on the right reel 220 (variable display portion 24 ) and the red 7 symbol 191 on the left reel 220 (variable display portion 22 ) are automatically stopped and displayed along the pay line L 2 , as shown in FIG. 16 .
  • each of the stop buttons 26 to 30 has no relation with so-called “observation push” which is done for purpose to allow technical intervention by the player.
  • the switch signal output from each of the stop buttons 26 to 30 is used to the end only as the trigger when the symbols on the reels 220 (variable display portions 22 to 24 ) scrolled are stopped and displayed. Therefore, the symbols on each of the reels 220 (variable display portions 22 to 24 ) are stopped and displayed thereon based on only the lottery result obtained in S 31 .
  • each of the stop buttons 26 to 30 has no relation with so-called “observation push” which is done for purpose to allow technical intervention by the player.
  • the switch signal output from each of the stop buttons 26 to 30 is used to the end only as the trigger when the symbols on the reels 220 (variable display portions 22 to 24 ) scrolled are stopped and displayed. Therefore, the symbols on each of the reels 220 (variable display portions 22 to 24 ) are stopped and displayed thereon based on only the lottery result obtained in S 31 .
  • the slot machine 1 in a case that the free game is done, if it is determined that the “colorless effect” process by using the colorless 7 symbol 193 is done (S 33 in FIG. 15 ) and at that time, for example, the sinning combination of the red 7-red 7-red 7 is won or the symbol combination is the rd 7-red 7-blue 7 which correspond to loss of the winning combination, the colorless 7 symbol 193 on the center reel 220 (variable display portion 23 ′) is stopped and displayed along the pay line L 2 after the red 7 symbol 191 on the, right reel 220 (variable display portion 24 ) and the red 7 symbol 191 on the left reel 220 (variable display portion 22 ) are automatically stopped and displayed along the pay line L 2 , as shown in FIG.
  • the symbol combination is the red 7-red 7-blue 7 which corresponds to loss of the winning combination
  • blue color is added against the colorless 7 symbol 193 on the center reel 220 (variable display portion 23 ) by displaying blue color on the lower liquid crystal display 4 .
  • the symbol on the center reel 220 stopped and displayed along the pay line L 2 is displayed as the blue 7 symbol 192 (S 38 in FIG. 15 ).
  • the colorless 7 symbol 193 on the center reel 220 (variable display portion 23 ) is stopped and displayed along the pay line L 2 (S 37 in FIG. 15 ) by using the switch signal output from the pressed stop buttons 26 to 30 as the trigger.
  • red color is added against the colorless 7 symbol 193 on the center reel 220 (variable display portion 23 ) by displaying red color on the lower liquid crystal display 4 , as shown in FIG. 17 .
  • the symbol on the center reel 220 stopped and displayed along the pay line L 2 is displayed as the red 7 symbol 191 and coins corresponding to the winning combination of the red 7-red 7-red 7 are paid out. Therefore, it can be given an impression to the player as if coins are got based on the so-called “observation push” due to that the player presses any one of the stop buttons 26 to 30 .
  • the slot machine according to the second embodiment of the present invention will be described with reference to drawings.
  • the second embodiment has basically the same construction as that in the first embodiment.
  • the base game in the second embodiment is done according to the same procedure in the first embodiment.
  • characteristic construction in the second embodiment will be mainly described hereinafter.
  • the symbol rows which are variably displayed according to rotation of above three reels 220 will be described with reference to FIG. 19A .
  • the symbol row 46 is the symbol row variably displayed on the left reel 220
  • the symbol row 47 is the symbol row variably displayed on the center reel 220
  • the symbol row 48 is the symbol row variably displayed on the right reel 220 .
  • both the symbol rows 46 and 47 are constructed from four symbols of two red 7s and two blanks (area that no symbol exists) which are voluntarily combined. But, symbol arrangement in the symbol row 46 is different from symbol arrangement in the symbol row 47 .
  • the symbol row 48 is constructed from four symbols of two red 7s and one blank and letters “LE” which are voluntarily combined.
  • the symbol constructed from the letters “LE” is represents the ending of two letters in the words “TRIPLE” and “DOUBLE” which are formed by combining the letters “TRIP” or “DOUB” displayed on the variable display portion 24 with the letters “LE”.
  • the symbol row displayed on the variable display portion 25 in the free game is, as shown in FIG. 19B , constructed from the symbol of the letters “TRIP” and the symbol of the letters “DOUB”, both symbols being arranged so as to mutually separate with one symbol apace therebetween.
  • the symbol “LE” on the right reel 220 constructs the first divisional symbol obtained by dividing the words “TRIPLE” or “DOUBLE” into two parts and the symbols “TRIP” and “DOUB” in the variable display portion 24 construct the second divisional symbol.
  • FIG. 20 is an explanatory view showing the winning combination lottery table in the free game.
  • the range of the random number values lie within 0 ⁇ 127. And if the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 5, the winning combination of the red 7-red 7-TR (TRIPLE) is won. In this case, it is executed display control that the symbol “LE” on the right reel 220 and the symbol “TRIP” of the variable display portion 24 are combined, thereby the word “TRIPLE”, which is formed by combining both the symbols “LE” and “TRIP”, is displayed in cooperation with the right reel 220 and the variable display portion 24 .
  • the winning combination of the red 7-red 7-TRIPLE is stopped and displayed on the pay line in the left reel 220 , the center reel 220 and the right reel 220 combined with the variable display portion 24 .
  • the random number value sampled by the random number sampling circuit 56 lies in a range of 6 ⁇ 10, the winning combination of the red 7-red 7-DO (DOUBLE) is won.
  • the random number value sampled by the random number sampling circuit 56 lies in a range of 11 ⁇ 26, the winning combination of the red 7-red 7-red 7 is won.
  • the random number value lies in a range of 11 ⁇ 26, the winning combination of the red 7-red 7-red 7 is stopped and displayed on the pay line in the left reel 220 , the center reel 220 and the right reel 220 .
  • the random number value lies in a range of 27 ⁇ 127, it concludes to loss of the winning combination.
  • the payout number of coins in a case that the winning combination of the red 7-red 7-TRIPLE is won becomes three times of the payout number of coins in a case that the winning combination of the red 7-red 7-red 7 is won.
  • the payout number of coins in a case that the winning combination of the red 7-red 7-DOUBLE is won becomes twice of the payout number of coins in a case that the winning combination of the red 7-red 7-red 7 is won.
  • the payout number of coins changes according to whether the winning combination of the red 7-red 7. TRIPLE is won or the winning combination of the red 7-red 7-DOUBLE is won.
  • FIG. 21 is a flowchart of the main process program.
  • This start acceptance process is the process to receive the switch signal output from the start switch 57 , the spin switch 58 , the 1-BET switch 59 , the 3-BET switch 60 or the 5.
  • BET switch 61 based on operation of the start lever 17 , the SPIN/REPEAT BET button 12 , the 1-BET button 11 , the 3-BET button or the 5-BET button 14 . At the time that the switch signal output from each switch is received, the game is started.
  • the above number of the free games it is set beforehand as 10 games, 20 games and 30 games.
  • FIG. 22 shows the flowchart of the base game process program.
  • each of the stop buttons 26 to 30 has no relation with so-called “observation push” which is done for purpose to allow technical intervention by the player.
  • the switch signal output from each of the stop buttons 26 to 30 is used to the end only as the trigger when the symbols scrolled on the variable display portions 21 to 25 are stopped and displayed thereon. Therefore, the symbols on each of the variable display portions 21 to 25 are stopped and displayed thereon based on only the lottery result obtained in S 2 of FIG. 21 .
  • FIG. 23 shows a flowchart of the free game process program.
  • the lottery of the winning combination in the free game is conducted in S 49 based on the lottery table shown in FIG. 20 .
  • the determination process of the winning combination is done based on the lottery result obtained in S 49 . Concretely, if the random number value sampled by the random number sampling circuit 56 lies in a range of 0 ⁇ 5, it is determined that the winning combination of the red 7-red 7-TRIPLE is won. And if the random number value sampled by the random number sampling circuit 56 lies in a range of 6 ⁇ 10, it is determined that the winning combination of the red 7-red 7-DOUBLE is won.
  • the random number value sampled by the random number sampling circuit 56 lies in a range of 11 ⁇ 26, it is determined that the winning combination of the red 7-red 7-red 7 is won. Further, if the random number value sampled by the random number sampling circuit 56 lies in a range of 27 ⁇ 127, it is determined that loss of the winning combination occurs.
  • S 53 it is displayed on the lower liquid crystal display 4 the guidance to call player's attention so as to press the stop buttons 27 to 29 corresponding to each of the reels 220 .
  • the message to call player's attention so as to press the stop buttons 27 to 29 corresponding to each of the reels 220 is displayed or the other supplementary message is displayed
  • scroll of the symbol is started on the variable display portion 24 based on that the symbols are stopped on each reel 220 .
  • scroll of the symbol “TRIP” and the symbol “DOUB” is conducted on the variable display portion 24 , the symbol “TRIP” and the symbol “DOUB” being used as the symbol which is combined with the symbol “LE” (the first divisional symbol) on the right reel 220 .
  • the winning combination of the red 7-red 7-TRIPLE is won, the symbol “TRIP” is stopped and displayed on the pay line on the variable display portion 24 .
  • the symbol “TRIP” stopped on the variable display portion 24 and the symbol “LE” stopped on the pay line of the right reel 220 in S 54 are combined and displayed.
  • the winning combination of the red 7-red 7-TRIPLE is displayed by the red 7 symbol already stopped on the left reel 220 , the red 7 symbol already stopped on the center reel 220 and the symbol “TRIPLE” constructed from the first divisional symbol “LE” stopped on the right reel 220 and the second divisional symbol “TRIP” stopped and displayed on the variable display portion 24 .
  • the winning combination of the red 7-red 7-DOUBLE is won, as similar as the above mentioned case, the symbol “DOUB” stopped and displayed on the variable display portion 24 and the symbol “LE” stopped on the pay line of the right reel 220 in S 54 are combined and displayed, as a result, the winning combination of the red 7-red 7-DOUBLE is displayed by the red 7 symbol already stopped on the left reel 220 , the red 7 symbol already stopped on the center reel 220 and the symbol “DOUBLE” constructed from the first divisional symbol “LE” stopped on the right reel 220 and the second divisional symbol “DOUB” stopped and displayed on the variable display portion 24 .
  • procedure shifts to S 61 .
  • S 59 it is displayed on the lower liquid crystal display 4 the guidance to call player's attention so as to press the stop buttons 27 to 29 corresponding to each of the reels 220 .
  • the message to call player's attention so as to press the stop buttons 27 to 29 corresponding to each of the reels 220 is displayed or the other supplementary message is displayed.
  • the symbol combination other than the winning combination is stopped on the pay line.
  • the slot machine 1 in the free game which is conducted continuous to the base game based on that the trigger of the free game is realized, if the specific winning combination (the red 7-red 7-TRIPLE or The red 7-red 7-DOUBLE) is won, the red 7s are stopped on the left reel 220 and the center reel 220 and the first divisional symbol “LE”, which is obtained by dividing the word “TRIPLE” or “DOUBLE”, is stopped on the pay line of the right reel 220 , thereafter scroll of the symbols is done on the variable display portion 24 corresponding to the right reel 220 and the second divisional symbol “TRIP” or “DOUB” is stopped on the pay line.
  • the specific winning combination the red 7-red 7-TRIPLE or The red 7-red 7-DOUBLE
  • the symbol combination of the red 7-red 7-LE can be stopped and displayed on each reel 220 so that the player cannot recognize the kind of the winning combination which is won, and thereafter the second divisional symbol “TRIP” or “DOUB”, which is lastly stopped and displayed on the variable display portion 24 , can be stopped and displayed so that the player can recognize the winning combination at the time that the second divisional symbol is stopped and displayed.
  • the second divisional symbol “TRIP” or “DOUB” is stopped and displayed on the variable display portion 24 since the symbol combination of the red 7-red 7-LE is stopped and displayed on each reel 220 .
  • the slot machine 1 since the fee game is conducted while seeing the symbols formed on three reels 220 through each of the variable display portions 22 to 24 on the lower liquid crystal display 4 , red color or blue color is added to the colorless 7 symbol 193 of the center reel 220 (variable display portion 23 ) by displaying red color or blue color in the area superimposed with the colorless 7 symbol 139 on the center reel 220 .
  • the slot machine 1 may be constructed as follows.
  • the colorless 7 symbol 193 may be projected on the area of the liquid crystal display 4 superimposing with each of the variable display portions 22 to 24 without forming the colorless 7 symbol 193 on three reels 220 , and the red 7 symbol 191 or the blue 7 symbol 192 may be seen through the transparent area on the liquid crystal display 4 , the transparent area being formed after 0.5 seconds are elapsed.
  • scroll of the symbols on three reels 220 may be done on the liquid crystal display 4 .
  • a part of the blank (area that no symbol exists) 96 may be used as the colorless 7 symbol 193 and after 0.5 seconds are elapsed since such part of the blank 96 is stopped and displayed along the pay line L 2 , the triple BAR 91 , the cherry 29 , the double BAR 93 , the seven 94 , the single BAR 95 and the trigger symbol 97 may be projected on such part.
  • gradation of the trigger symbol 97 and appearance speed of the trigger symbol 97 may be changed in proportion to the number of times in the free game.
  • the “colorless effect” process is done on the colorless 7 symbol 193 of the center reel 220 (variable display portion 23 ) which is stopped and displayed along the pay line L 2
  • the “colorless effect” process may be done on the colorless 7 symbol 193 on the right or left reel 220 which is stopped and displayed along the pay line L 2
  • the pay line L 2 is not limited to the center line and the colorless 7 symbol 193 stopped and displayed along the top line or the bottom line may be used.
  • the symbol stopped and displayed on the pay line may be determined every each of the variable display portions 21 to 25 .
  • code numbers 0 ⁇ 10 are allotted to the symbol rows 41 to 45 each of which corresponds to each of the variable display portions 21 to 25 shown in FIG. 4 , and the lottery table shown in FIG. 25 is provided. And five random number values are sampled so as to correspond to each of the variable display portions 21 to 25 .
  • the random number value corresponding to the variable display portion 21 is the code number 1
  • the symbol to which the code number 1 is allotted is stopped and displayed on the pay line
  • the random number value corresponding to the variable display portion 22 is the code number 2
  • the symbol to which the code number 2 is allotted is stopped and displayed on the pay line.
  • the random number value corresponding to the variable display portion 23 is the code number 3
  • the symbol to which the code number 3 is allotted is stopped and displayed on the pay line
  • the random number value corresponding to the variable display portion 24 is the code number 4
  • the random number value corresponding to the variable display portion 25 is the code number 5
  • the symbol to which the code number 5 is allotted is stopped and displayed on the pay line.
  • the lottery table shown in FIG. 25 although the random number value is evenly allotted against each of the code numbers, the lottery table, in which the random number values are unevenly allotted against the code numbers as shown in FIG. 26 , may be utilized in order that the joker 97 to shift to the free game is made difficult to be stopped and displayed on the pay line.
  • determining the symbol stopped and displayed on the pay line every each of the variable display portions 21 to 25 can be also conducted for the symbols on the reels 220 (variable display portions 22 to 24 ) in the free game.
  • the reels 220 may be automatically stopped after a predetermined time is elapsed, in no relation to whether the player presses the stop buttons 26 to 30 or not, and in S 38 in FIG. 15 , the colorless 7 symbol 193 may be colored by using the switch signal output from the stop buttons 26 to 30 pressed by the player. This concept may be also conducted in the base game.
  • scroll of the symbols may be stopped on the variable display portions 21 to 25 after a predetermined time is elapsed in no relation to whether the player presses the stop buttons 26 to 30 or not, and on the contrary, in only the free game (S 37 , S 41 in FIG. 15 ), rotation of the reels 220 may be stopped by using the switch signal output from the pressed stop button among the stop buttons 26 to 30 , in a case that any one of the stop buttons 26 to 20 is pressed by the player.
  • the symbol “LE” formed in the symbol row of the right reel 220 among the reels 220 arranged in the cabinet 2 is first stopped, and the symbol “DOUB” or the symbol “TRIP” is continuously stopped on the variable display portion 24 of the lower liquid crystal display 4 .
  • the present invention is not limited to this.
  • the symbol “DOUB” or the symbol “TRIP” may be first stopped on the variable display portion 24 and the symbol “LE” in the symbol row of the right reel 220 may be continuously stopped.
  • the stop order of each symbol it is desirable that the common symbol (the symbol “LE” in the second embodiment) is first stopped and the symbol, which affects the payout of coins (the symbol “DOUB” and the symbol “TRIP” in the second embodiment) is continuously stopped.
  • the stop order of the symbols payout of coins can be changed based on the combination with the symbol lastly stopped, as a result, expectation of the player can be highly maintained.
  • the symbol rows 41 to 45 shown in FIG. 4 are displayed on five variable display portions 21 to 25 of the lower liquid crystal display 4
  • the symbol rows 46 to 48 shown in FIG. 17A are rotated on three reels 220 and the symbol is displayed on the variable display portion 24 , thereby the free game is done.
  • the present invention is not limited to this.
  • the base game may be done by using five reels 220 on each of which the symbol row shown in FIG. 4 is formed and the free game may be done the symbol rows 46 to 48 and the second divisional symbol shown in FIG. 19A are variably displayed on the lower liquid crystal display 4 .
  • stop buttons 26 to 30 are provided corresponding to the variable display portions 21 to 25 and the trigger signal is output by pressing the stop button corresponding to the variable display portion on which the symbols are scrolled
  • stop display of the symbol may be done on all of plural variable display portions utilized in the game except for one variable display portion and only the switch signal output from the stop button corresponding to the remaining variable display portion may be accepted.
  • each of the stop buttons 26 to 30 is not pressed for a predetermined time, each of the variable display portions 2 to 25 may be automatically stopped and displayed as the predetermined time is elapsed.
  • the lottery of the stop symbol may be done every variable display portion utilized in the game.
  • the lottery can be conducted as follows.
  • each symbol which exists in the symbol rows 41 to 45 variably displayed on five variable display portions 21 to 25 which are utilizable in the game, and the code number are corresponded.
  • FIG. 28 it is prepared the lottery table that the code number of the symbol in each symbol row and the random number value are corresponded.
  • the lottery table shown in FIG. 28 it is formed so that the symbol in each symbol row is selected with even probability and without inclination.
  • the lottery of the stop symbol is done in use of the code table shown in FIG. 27 and the lottery table shown in FIG. 28 .
  • the code table shown in FIG. 27 and the lottery table shown in FIG. 28 .
  • five lotteries are done for five variable display portions 21 to 25 .
  • the lottery of the symbol stopped on the variable display portion 21 is done. For example, if the obtained random number value is 4, the symbol seven (7) corresponding to the code number 4 in the symbol row 41 is stopped based on the lottery table of FIG. 28 . Here, the same lottery is done as the remaining four variable display portions 42 to 45 .
  • the joker 97 is also selected with even probability, similarly to the other symbol, thereby it concludes that the free game is easily triggered. Therefore, in order to make inclination in the select probability of each symbol, the lottery table shown in FIG. 29 may be utilized.
  • the range of the random number values lies within 0 ⁇ 127.
  • the probability that the joker 97 is stopped becomes 1/128, as a result, the select probability of the joker 97 is set so that it is difficult to shift to the free game from the base game. And inclination is formed for the select probability of the other symbol.
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