GB2101380A - Coin-freed gaming machine - Google Patents

Coin-freed gaming machine Download PDF

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Publication number
GB2101380A
GB2101380A GB8119682A GB8119682A GB2101380A GB 2101380 A GB2101380 A GB 2101380A GB 8119682 A GB8119682 A GB 8119682A GB 8119682 A GB8119682 A GB 8119682A GB 2101380 A GB2101380 A GB 2101380A
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Grant status
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Patent type
Prior art keywords
means
combination
symbol
symbols
gaming machine
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.)
Withdrawn
Application number
GB8119682A
Inventor
Donald John Last
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
* SUMMIT COIN Ltd
SUMMIT COIN Ltd
Original Assignee
Summit Coin Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date

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Classifications

    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F17/00Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports or amusements, e.g. casino games, online gambling or betting
    • G07F17/326Game play aspects of gaming systems
    • G07F17/3267Game outcomes which determine the course of the subsequent game, e.g. double or quits, free games, higher payouts, different new games
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07FCOIN-FREED OR LIKE APPARATUS
    • G07F17/00Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports or amusements, e.g. casino games, online gambling or betting
    • G07F17/326Game play aspects of gaming systems
    • G07F17/3262Player actions which determine the course of the game, e.g. selecting a prize to be won, outcome to be achieved, game to be played
    • G07F17/3265Influencing the position of stopped moving members to achieve a winning arrangement, e.g. nudging, shuffling, holding

Abstract

In a "fruit machine" which displays the rotating reels 13a, 13b, 13c on a television screen 12, a player with a losing combination may be granted a random chance to move a replacement symbol step-by-step along the screen to replace one or other of the "reel" symbols. If successful at this, he can then either collect his winning or gamble upon increasing it. <IMAGE>

Description

SPECIFICATION Coin-freed gaming machine Description This invention relates to a coin-freed gaming machine of the type comprising first means defining a plurality of separate series of symbols and second means operative to select any symbol from each series and to display the combination of selected symbols from said plurality of series.

In a known and widely used exemplary machine of this type said first means takes the form of a plurality of rotatable reels or drums, said second means operates by rotating the reels or drums to positions in which the selected symbols are visible through a window, and many (if not all) of the symbols are pictures of various fruits, as a result of which the exemplary machine has become known colloquially as a "fruit machine".

The object of the invention is to enable a machine of such a type to present a player with a chance of improving the result of a game.

As seen from one aspect of the invention there is provided a coin-freed gaming machine comprising first means defining a plurality of separate series of symbols, second means operative to select at least one symbol from each series in a random or simulated random manner and to display all of the selected symbols in combination on a screen, third means predefining some predetermined combinations of symbols as winning combinations and other combinations as losing combinations, fourth means operative to determine whether a selected combination is a winning combination or a losing combination, and fifth means operative on some but not all of the occasions that a losing combination is selected to enable the losing combination to be changed to a wining combination, the operative occasions being determined in a random or simulated random manner, said fifth means being characterised in that it comprises sixth means to display on the screen, initially in a position spaced apart from the selected symbols, another symbol such that, if substituted for one of the selected symbols, the losing combination would be changed to a winning combination, and seventh means operable by the player for moving the position of said other symbol on the screen in directions selected by the player such that, if said seventh means is operated correctly by the player, said other symbol can be moved to a desired position in which it becomes substituted for said one of the selected symbols so as to change the losing combination to a winning combination.

Preferably the screen is a cathode ray tube screen.

Preferably said desired position is the actual position of said one of the selected symbols.

Preferably said fifth means is characterised by eighth means operative, in the event of a winning combination being obtained, to provide the player with a choice between either collecting a reward of a certain value or gambling upon increasing the value of the reward with the chance of decreasing the value of the reward.

Preferably said eighth means is operative in the event of the value of the reward being increased to provide the player with a further choice between either collecting the reward of the increased value or gambling upon still further increasing the value of the reward with the chance of decreasing the value of the reward.

Preferably the decrease in the value of the reward is to zero.

Preferably said sixth means is operative to select said other symbol from a respective series of symbols in a random or simulated random manner so that said other symbol will be sometimes suitable or sometimes unsuitable for changing a losing combination to a winning combination.

Preferably said sixth means is operative to display said respective series of symbols one after another in a given screen position, stopping the changing of displayed symbols on the selected symbol.

Preferably some losing combinations are such that said fifth means is incapable of changing any of them to a winning combination.

Preferably said first and second means are operative to display or to simulate rotating reels or drums which stop at random or simulated random on the screen.

The invention will be described by way of example with reference to the accompanying drawings, wherein: Fig. 1 illustrates the screen of a machine embodying the invention; Fig. 2 illustrates a four-way lever of the machine; Fig. 3 illustrates an array of four buttons as an alternative to the lever of Fig. 2; and Figs. 4 to 11 in combination form a "truth diagram" of the machine illustrating the logical sequence of events in operating the machine.

Referring to Fig. 1 of the drawings, the machine is equipped with a television screen, shown schematically in Fig. 1, on which images are produced electronically by means within the machine in a manner analogous to the way in which images are produced on the television screens of well-known "space-invader" gaming machines.

Shown on the television screen 12 are (images of) three rotating "fruit machine" reels 1 3a, 1 3b and 1 3c. As with conventional fruit machines, it is possible to see three complete symbols of each reel at any one time, so that the screen can show three horizontal rows 1 4a, 1 4b and 1 4c of three symbols each (that is, one symbol per reel per row) of which the middle row 1 4b, is the row which determines, when all three reels have "stopped", whether the player has a winning line or not, as with conventional fruit machines.

The machine is provided with a conventional printed list (not shown) showing various "winning lines" of symbols and the value of the award for each respective winning line, some winning lines being more valuable than others, as with conventional fruit machines. Illuminable signs 1 spa to 1 sue indicate awards of 20 pence, 40 pence, 60 pence, 1 and 2 respectively. Such an award may be actual or only provisional, as will be explained hereinafter.

In addition to the total of nine symbols which are visible from the images of the three reels 1 3a, 1 3b and 1 3c, the screen shows images, one at a time, of a series of changing symbols in a space 16 near the bottom right hand corner of the screen. In the event of a "GO" feature being granted in any particular game (grant of the "GO" features being at random or simulated random) the symbol which finally occupies space 16 (after the symbols have ceased changing there) can be made to move stepwise, in a manner discussed hereinafter, so as to become superimposed upon, and to replace, any of the nine symbols shown of the three reels 13a, 1 3b and 1 3c. The symbol shown in space 1 6 can be stepped horizontally beneath the three reels 1 3a, 1 3b and 1 3c, one step taking it to a position beneath reel 1 3c, a second step taking it to immediately beneath reel 1 3b and a third step taking it to a position immediately beneath reel 1 3a. When the symbol (for convenience called a "replacement" symbol) has been stepped as desired to a position beneath reel 1 3a, 1 3b or 1 3c, it can be stepped upwardly so as to become superimposed upon, and to replace, the lowest symbol - in row 14e -- after one step, the middle symbol - in row 1 4b - after another step and the highest symbol - in row 1 4a - after a third step. There is a maximum number of steps allowed in any one game (for example five steps) preferably just, but only just, sufficient for the replacement symbol to replace the middle symbol in row 1 4b of the left hand reel 1 3a.If (with a maximum of five steps) it is moved to replace the middle symbol in row 1 4b of the middle reel 1 3b, the player has one step in hand, whilst if the replacement symbol is moved correctly to replace the middle symol in row 1 4b of the right hand reel 1 3c, the player will have two steps in hand and can afford to overshoot the position (so that the replacement symbol accidentally moves to replace the highest symbol in row 14a of the right hand reel 1 3c) and bring the symbol back to the middle row, using up the full quota of five steps in the process.Hence if, for example (as shown) is happens that the left hand and right hand symbols in row 1 4b (of reels 1 3a and 1 3c) are oranges and the replacement symbol shown in space 16 is also an orange (a line of three oranges being a winning line) but the middle symbol in row 1 4b of reel 1 3b is not an orange, so that the reels are actually showing a losing line, the player is able, if fortunate enough to be granted the "GO" feature, to step the orange from space 1 6 two steps to beneath reel 4 3b and then to step the orange vertically two steps up to become superimposed upon, and to replace, the symbol shown in row 1 4b of reel 1 3b, so that a winning line of three oranges appears.

Of course, it may happen that the symbol which comes to be shown in space 1 6 is not an orange, in which case, even if the player is granted the "GO" feature, he is unable to create a winning line even if he correctly steps the replacement symbol into the desired position (left hand, centre or right hand) in row 1 4b.

Another possibility is that space 1 6 shows the orange that (in the example given) the player requires, but he is denied the "GO" feature.

An illuminable "GO" sign 1 7 informs the player in the event that the "GO" feature is granted.

In the event of the player successfully creating a winning line, with or without the "GO" feature (that is to say, either as a result of the images of the three reels 13a, 1 3b, 1 3c stopping in positions required to produce a winning line 1 4b or as a result of successful use of the "GO" feature producing a winning line 1 4b) a "GAMBLE OR COLLECT" feature becomes operative. When this happens, a space 18 at or near the top left hand corner of the screen is made to reproduce an image of the same symbol as the right hand symbol in row 1 4b of reel 1 3c and a sign 19 becomes illuminated to indicate to the player that he must choose between collecting the award shown (by illumination of one of the signs 1 spa to 1 5e) for the winning line or gambling upon increasing the award.At this stage, the award is provisional and is not actually paid out. If the player choses to collect the award, the provisional amount becomes the actual amount and the machine pays it out, as with a conventional fruit machine. If the player chooses to gamble, assuming that he has not won the highest award of 2, then the symbol shown in space 1 8 jumps backward and forwards between the space 18 on the one hand and the sign appertaining to the next highest award to the provisional award.For example, if the winning line obtained by moving the replacement symbol into the right place in row 1 4b corresponds to a provisional award of 40 pence, shown by illumination of sign 1 sub, and the player chooses to gamble, the symbol shown in space 1 8 jumps backwards and forwards between the space 1 8 and the sign 1 sic which corresponds to the next highest award of 60 pence. If the symbol eventually stops in space 18, then the player loses altogether and does not even obtain the provisional award corresponding to the winning line.If the gamble succeeds, the sign 1 Sc stays on and the provisional award becomes 60 pence, whereupon the player can again choose between collecting it or gambling for a still higher award of 1 (sign 1 sod). Again, as previously, the player may lose altogether or may succeed in making the provisional award the sum of 1, whereupon he again has the choice between collecting the award of 1 or gambling for the highest award of 2. Further description of playing a game on the machine is given below with reference to Figs. 4 to 11.

Referring to Fig. 2, there is shown a four way lever 20 which can be moved (against a centrespring return-means, not shown) to the left or right or up or down. The lever 20 is used for stepping the replacement symbol from space 1 6 to the left, to the right, upwardly or downwardly. It is also used for the player to indicate (when sign 1 9 is lit) whether he wishes to collect his award (indicated by moving the lever to the left) or to gamble for a higher award (indicated by moving the lever to the right).

Referring to Fig. 3, there are shown four push buttons 21 a to 21 d which may be substituted for the lever 20 and used in an analogous manner.

Referring to Figs. 4 to 11 which, as mentioned previously, in combination form a "truth diagram" of the machine, illustrating the logical sequence of events in operating the machine, logic circuitry (not shown) within the machine detects (box 22, Fig. 4) the display on the screen 12 of the end of a normal random spin or simulated random spin of reels 1 3a, 1 3b and 13c. The logic circuitry then determines (box 23) whether the selected combination of symbols at line 1 4b is a winning combination or a losing one. If the combination is a winning combination, the machine prohibits the granting of a "GO" feature for that particular game (Box 24, Fig. 6) and displays the winning combination and the provisional amount won (box 25, Fig. 8).

The logic circuitry then determines (box 31, Fig.

11) whether the won provisional amount is the maximum obtainable. If it is, the provisional amount becomes the actual amount (box 32, Fig.

9) and is paid out and that is the end of the game.

If it is not (box 31, Fig.11) the player is invited to "COLLECT OR GAMBLE". What happens in this event is described hereinafter, since the same "COLLECT OR GAMBLE" feature occurs after a successfully completed "GO" feature.

Referring back to Fig. 4, box 23, if the selected combination of symbols in line 1 4b is a losing combination, the logic circuitry determines (box 26) whether the "GO" feature is to be granted for this game, the chance of the feature being granted being a random or simulated random chance. If the logic circuitry determines that the "GO" feature is not to be granted, there is no win and no payout (box 27, Fig. 7). The player loses and that is the end of the game.

Referring back to Fig. 4, box 26, if the logic circuitry determines that the "GO" feature is to be granted this game, the player is invited (box 28, Fig. 5) to operate the four-way lever 20 (Fig. 2) for stepping a replacement symbol from space 1 6 (Fig. 1) along the screen 12 to try to substitute it for a selected "reel" symbol in line 1 4b. While this is in progress, the logic circuitry repeatedly tests to see whether a winning combination has been formed (box 29) and, if a winning combination has been formed, the winning combination and the provisional amount won are displayed (box 25, Fig. 8).

Referring back to Fig. 5, so long as a winning combination has not been formed (box 29) the logic circuitry tests to see whether more moves of the replacement symbol are allowed (box 30) there being both a time limit and a number of moves (for example, five moves) limit. So long as more moves of the replacement symbol are allowed, the player continues to be invited (box 28) to operate the four-way lever (Fig. 2) for stepping the replacement symbol along the screen 12 to try to substitute it for a selected "reel" symbol.

If and when the stage is reached that no winning combination has been formed (box 29) and no more moves of the replacement symbol are allowed (box 30) there is no win and no payout (box 27, Fig. 7). The player loses and that is the end of the game.

Referring back to the condition that the formation of a winning combination in line 1 4b is detected (box 29) and this winning combination and the provisional amount won are displayed (box 25, Fig. 8), the logic circuitry then determines (box 31, Fig. 11) whether the won provisional amount is the maximum obtainable. If it is, the provisional amount becomes the actual amount (box 32, Fig. 9) and is paid out and that is the end of the game.

Referring back to box 31, Fig. 11, if the won provisional amount is not the maximum obtainable the "COLLECT OR GAMBLE" feature mentioned earlier comes into operation. When this happens the player is invited (box 33, Fig. 11) to either "coilect" or "gamble" by operating the lever 20 accordingly. The logic circuitry determines (box 34) whether the player has decided to collect (by pushing lever 20 to the left, Fig. 2) or gamble (by pushing the lever 20 to the right). If the player has decided to collect the provisional amount becomes the actual amount (box 32, Fig. 9) and is displayed and paid out, that being the end of the game.

Referring back to box 34, Fig. 11, if the player has decided to gamble, the display alternates repeatedly between "lose" (represented by space 18, Fig. 1) and the next higher possible provisional amount until it stops at one or the other at random (or simulated random), box 35, Fig. 10. The logic circuitry then determines (box 36, Fig. 10) whether the player has lost (altogether) or has won the next higher possible provisional amount.

If the player has lost, there is no win and no payout and that is the end of the game (box 27, Fig. 7). If the player has won the next higher possible provisional amount, the logic circuitry recycles to display the winning combination and the provisional amount won (box 25, Fig. 8) to determine whether the won provisional amount is the maximum obtainable (box 31, Fig. 11) and, if so, to make the provisional amount the actual amount and to display it and pay it out (see above, box 32, Fig. 9) or if not to invite the player again to either collect or gamble by operating the lever 20 accordingly, whereupon the same sequence of events take place as described above commencing with determining whether the player has decided to collect or gamble, box 34, Fig. 11.

Claims (10)

1. A con-freed gaming machine comprising first means defining a plurality of separate series of symbols, second means operative to select at least one symbol from each series in a random or simulated random manner and to display all of the selected symbols in combination on a screen, third means predefining some predetermined combinations of symbols as winning combinations and other combinations as losing combinations, fourth means operative to determine whether a selected combination is a winning combination or a losing combination, and fifth means operative on some but not all of the occasions that a losing combination is selected to enable the losing combination to be changed to a winning combination, the operative occasions being determined in a random or simulated random manner, said fifth means being characterised in that it comprises sixth means to display on the screen, initially in a position spaced apart from the selected symbols, another symbol such that, if substituted for one of the selected symbols, the losing combination would be changed to a winning combination, and seventh means operable by the player for moving the position of said other symbol on the screen in directions selected by the player such that, if some seventh means is operated correctly by the player, said other symbol can be moved to a desired position in which it becomes substituted for said one of the selected symbols so as to change the losing combination to a winning combination.
2. A gaming machine as claimed in claim 1 wherein the screen is a cathode ray tube screen.
3. A gaming machine as claimed in claim 1 or 2 wherein said desired position is the actual position of said one of the selected symbols.
4. A gaming machine as claimed in claim 1,2 or 3 wherein said fifth means is characterised by eighth means operative, in the event of a winning combination being obtained, to provide the player with a choice between either collecting a reward of a certain value or gambling upon increasing the value of the reward with the chance of decreasing the value of the reward.
5. A gaming machine as claimed in claim 4 wherein said eighth means is operative, in the event of the value of the reward being increased to provide the player with a further choice between either collecting the reward of the increased value or gambling upon still further increasing the value of the reward with the chance of decreasing the value of the reward.
6. A gaming machine as claimed in claim 4 or 5 wherein the decrease in the value of the reward is to zero.
7. A gaming machine as claimed in any preceding claim wherein said sixth means is operative to select said other symbol from a respective series of symbols in a random or simulated random manner so that said other symbol will be sometimes suitable and sometimes unsuitable for changing a losing combination to a winning combination.
8. A gaming machine as claimed in claim 7 wherein said sixth means is operative to display said respective series of symbols one after another in a given screen position, stopping the changing of displayed symbols on the selected symbol.
9. A gaming machine as claimed in any preceding claim wherein some losing combinations are such that said fifth means is incapable of changing any of them to a winning combination.
10. A gaming machine as claimed in any preceding claim wherein said first and second means are operative to display or to simulate rotating reels of drums which stop at random or pseudo-random on the screen.
GB8119682A 1981-06-25 1981-06-25 Coin-freed gaming machine Withdrawn GB2101380A (en)

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GB8119682A GB2101380A (en) 1981-06-25 1981-06-25 Coin-freed gaming machine

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GB2161009A (en) * 1984-06-29 1986-01-02 Maygay Machines Gaming machine
US6605000B2 (en) 1994-09-23 2003-08-12 Igt Slot machine with additional payout indicator
US6827646B2 (en) 1994-09-23 2004-12-07 Igt Slot machine with an additional payout indicator
US6918832B2 (en) * 2000-06-29 2005-07-19 Igt Gaming device with traveling reel symbols
US6921335B2 (en) * 2001-09-28 2005-07-26 Igt Gaming device having symbols with transformation probabilities
US7052395B2 (en) * 2001-04-18 2006-05-30 Igt Gaming device having different sets of primary and secondary reel symbols
US7070502B1 (en) * 2000-10-13 2006-07-04 Igt Gaming device having dual evaluation scheme
US7371168B2 (en) 2001-10-05 2008-05-13 Igt Gaming apparatus and method of gaming including interactive gaming symbols for producing different outcomes
US7674172B2 (en) 2004-02-23 2010-03-09 Igt Gaming device having a wheel-based game
US7708630B2 (en) 2005-12-09 2010-05-04 Igt Rotor-based gaming device having a system for changing the quantity of potential game outcomes for subsequent plays
US7731584B2 (en) 2001-09-21 2010-06-08 Igt Gaming device having regenerating multiple award opportunities
US7749071B2 (en) 2004-01-02 2010-07-06 Igt Gaming device including player selectable wild symbols
US7753773B2 (en) 2005-08-26 2010-07-13 Igt Gaming device having physical concentric symbol generators which are operable to provide a plurality of different games to a player
US7758416B2 (en) 2006-09-08 2010-07-20 Igt Gaming system having a plurality of simultaneously played wagering games that may trigger a plurality of free games which may be played simultaneously with the wagering games
US7766329B1 (en) 1992-10-02 2010-08-03 Sierra Design Group Wheel indicator and ticket dispenser apparatus
US7775870B2 (en) 2003-11-21 2010-08-17 Sierra Design Group Arcade game
US7824252B1 (en) 1992-10-02 2010-11-02 Bally Gaming, Inc. Mechanical wheel indicator with sound effects
US7823883B1 (en) 2008-02-29 2010-11-02 Bally Gaming Inc. Wheel indicator and ticket dispenser apparatus
US7828294B2 (en) 2004-02-23 2010-11-09 Igt Gaming system having a dice-based game with a plurality of wager areas
US7901280B2 (en) 2001-12-17 2011-03-08 Igt Multiple reel roulette game
US7922573B2 (en) 2003-09-12 2011-04-12 Igt Gaming device having concentric reels including an outer reel with display areas having different sizes and positions
US7922176B1 (en) 1992-10-02 2011-04-12 Bally Gaming, Inc Wheel indicator and progressive bonus means
US7922175B1 (en) 1992-10-02 2011-04-12 Bally Gaming, Inc. Multi-mode wheel and pointer indicators
US8113942B2 (en) 2008-11-11 2012-02-14 Igt Gaming system and method having a bonus sequence with available symbols determined in a base game
US8113943B2 (en) 2004-10-01 2012-02-14 Igt Gaming device with changing wild symbols
US8137179B2 (en) 2006-11-08 2012-03-20 Igt Gaming device having expanding and rolling wild symbols
US8221214B2 (en) 2005-12-09 2012-07-17 Igt Rotor-based gaming device having a secondary award system
US8231456B2 (en) 2007-10-17 2012-07-31 Igt Gaming device and method providing side bet for winning free activations
US8241104B2 (en) 2006-11-06 2012-08-14 Igt Gaming device and method having designated rules for determining ways to win
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US8616954B2 (en) 2008-11-24 2013-12-31 Aristocrat Technologies Australia Pty Limited Method of gaming, a gaming system and a game controller
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GB2161009A (en) * 1984-06-29 1986-01-02 Maygay Machines Gaming machine
US8100401B1 (en) 1992-10-02 2012-01-24 Bally Gaming, Inc Multi-mode wheel and pointer indicators
US7922175B1 (en) 1992-10-02 2011-04-12 Bally Gaming, Inc. Multi-mode wheel and pointer indicators
US7922176B1 (en) 1992-10-02 2011-04-12 Bally Gaming, Inc Wheel indicator and progressive bonus means
US7832727B1 (en) 1992-10-02 2010-11-16 Bally Gaming Inc. Illuminated wheel indicators
US8052148B1 (en) 1992-10-02 2011-11-08 Bally Gaming, Inc. Wheel indicator and progressive bonus means
US7824252B1 (en) 1992-10-02 2010-11-02 Bally Gaming, Inc. Mechanical wheel indicator with sound effects
US7766329B1 (en) 1992-10-02 2010-08-03 Sierra Design Group Wheel indicator and ticket dispenser apparatus
US8096554B1 (en) 1992-10-02 2012-01-17 Bally Gaming, Inc Wheel indicator and ticket dispenser apparatus
US7878506B1 (en) 1992-10-02 2011-02-01 Bally Gaming, Inc. Wheel indicators
US8006977B1 (en) 1992-10-02 2011-08-30 Bally Gaming, Inc. Wheel indicator and progressive bonus apparatus
US7976022B1 (en) 1992-10-02 2011-07-12 Bally Gaming, Inc. Video wheel indicator
US6605000B2 (en) 1994-09-23 2003-08-12 Igt Slot machine with additional payout indicator
US6827646B2 (en) 1994-09-23 2004-12-07 Igt Slot machine with an additional payout indicator
US6918832B2 (en) * 2000-06-29 2005-07-19 Igt Gaming device with traveling reel symbols
US7481709B2 (en) 2000-10-13 2009-01-27 Igt Gaming device having dual evaluation scheme
US7226359B2 (en) 2000-10-13 2007-06-05 Igt Gaming device having dual evaluation scheme
US7070502B1 (en) * 2000-10-13 2006-07-04 Igt Gaming device having dual evaluation scheme
US7384334B2 (en) 2001-04-18 2008-06-10 Igt Gaming device having different sets of primary and secondary reel symbols
US8753189B2 (en) 2001-04-18 2014-06-17 Igt Gaming device having different sets of primary and secondary reel symbols
US7052395B2 (en) * 2001-04-18 2006-05-30 Igt Gaming device having different sets of primary and secondary reel symbols
US7731584B2 (en) 2001-09-21 2010-06-08 Igt Gaming device having regenerating multiple award opportunities
US6997808B2 (en) 2001-09-28 2006-02-14 Igt Gaming device having symbols with transformation probabilities
US7252592B2 (en) 2001-09-28 2007-08-07 Igt Gaming device having symbols with transformation probabilities
US6921335B2 (en) * 2001-09-28 2005-07-26 Igt Gaming device having symbols with transformation probabilities
US7371168B2 (en) 2001-10-05 2008-05-13 Igt Gaming apparatus and method of gaming including interactive gaming symbols for producing different outcomes
US9230394B2 (en) 2001-12-17 2016-01-05 Igt Multiple reel roulette game
US7901280B2 (en) 2001-12-17 2011-03-08 Igt Multiple reel roulette game
US8727862B2 (en) 2001-12-17 2014-05-20 Igt Multiple reel roulette game
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