Abstract: A gaming machine comprises a display and a game control to control images of symbols to be displayed on the display. Symbols are stored for positioning in an array. The symbols are divided into game-specific standard symbols and bonus symbols and are organized to define a bonusing scheme for filling fixed positions of the array. The game control randomly selects portions of the array for displaying images of the symbols in a matrix format on the display during a play of the game, and associates symbols within paylines of the matrix to provide play outcomes in accordance with the bonusing scheme and a paytable prescribed for the particular game. Different play options have a prescribed set of symbols associated with them. Each set is designed with a predetermined bonusing scheme, where the bonusing schemes are different between at least some of the play options and their associated set of symbols.

Abstract: A gaming machine comprises a display and a game control to control images of symbols to be displayed on the display. Symbols are stored for positioning in an array. The symbols include game-specific standard symbols and bonus symbols and are organized in a predetermined mix and number to define a bonusing scheme for filling positions of the array. The game control randomly selects portions of the array for displaying images of the symbols in a matrix format on the display during a play of the game, and associates symbols within paylines of the matrix to provide play outcomes in accordance with the bonusing scheme and a paytable prescribed for the particular game. The game control is configured to provide play options individually selectable by a player before a play. Each play option has a prescribed set of symbols and each set is designed with a predetermined bonusing scheme.

Abstract: An electronic gaming machine and a computer implemented method of administering game play, include displaying an electronic reel simulation including a multiple reel array for a wagering game on a display. A user input is accepted indicating a selected play option from a plurality of play options, wherein all play options of the plurality of play options enable all displayed positions of the multiple reel array to be considered in winning outcomes. A game outcome is determined and presented on the game display, the game outcome including game symbols for the displayed positions of the multiple reel array. Winning combinations of the game symbols are determined, where each winning combination includes three or more matching game symbols appearing in the displayed positions on each of three or more adjacent reels and at least one of the three or more matching game symbols is not used in another winning combination.

Abstract: Methods and apparatuses for administering game play include displaying an electronic reel simulation including a multiple reel array for a wagering game on a display. A user input indicates a selected play option from a plurality of play options. All play options enable all displayed positions of the multiple reel array to be considered in winning outcomes. A game outcome is determined and presented as game symbols on the display. Winning combinations of the game symbols are determined, wherein each winning combination includes three or more matching game symbols appearing in the displayed positions on each of three or more adjacent reels and at least one of the three or more matching game symbols is not used in another winning combination. A payout is determined and multiplied by a multiple correlated to the selected play option when a substitute multiplier symbol appears as one of the game symbols.

Abstract: A slot machine includes an option in which the probability of an outcome is influenced by changing the probability of one or more symbols occurring on one or more reels (reel 1, reel 2, . . . ) by randomly or pseudo-randomly selecting reels from a set of two or more reels. The probability can be adjusted by changing, adding or subtracting symbols on a reel strip.

Abstract: A method for awarding a jackpot, and a corresponding gaming machine and system are disclosed. The jackpot is awarded based upon the presence of scatter symbols appearing in the game outcome in a predefined manner. The jackpot is preferred to be linked across multiple machines. In a preferred form, scatter symbols on one reel may be in an active or inactive state, the jackpot is awarded only if they are in the active state, and the probability of them being in an active state is dependent upon the size of the player's wager, so as to provide linear returns to players.

Abstract: A method of incorporating a bonus symbol into a plurality of symbols to be displayed in a display of an electronic gaming machine, the display adapted to display at least a selected portion of a plurality of standard symbols, the method including the steps of: determining a number of bonus symbols to be displayed; for each bonus symbol to be displayed, determining a location at which the bonus symbol is to be displayed within the plurality of standard symbols; incorporating a bonus symbol with a corresponding standard symbol for the determined location; whereby the bonus symbol is incorporated into the plurality of symbols without affecting the standard symbol probabilities.

Abstract: A gaming machine and method of operation are disclosed, in which a primary game is played, and then a feature game may be triggered. The feature game allows the player to select a simulated reel gaming array from a within a selection of arrays, wherein at least some of the arrays have a different number of symbol positions to others in the selection.