Patent ID: 8465358

Claim:
A method of providing a slot game on a gaming machine to a player, the slot game having a plurality of cells arranged in a grid having a plurality of rows and columns, comprising the steps of: allowing the player to make a wager; displaying the slot game on a display device of the gaming machine; randomly selecting an outcome of the slot game and displaying the outcome on the display device, the outcome of the slot game including a game symbol associated with each cell in the grid, the game symbols belonging to a predetermined set of game symbols, the set of game symbols including a catalyst symbol and a reactant symbol; awarding an award to the player as a function of the outcome of the slot game, the wager made by the player, and a predetermined paytable; detecting an occurrence of the catalyst symbol in the outcome of the slot game and responsively detecting an occurrence of a reactant symbol in one of the cells of the grid having a predetermined spatial relationship on the grid with the catalyst symbol and responsively modifying the reactant symbol into a resultant symbol if the occurrence of a reactant symbol having a predetermined relationship on the grid with the catalyst symbol has been detected; for each resultant symbol, detecting an occurrence of a reactant symbol having a predetermined spatial relationship on the grid with the resultant symbol and responsively modifying the reactant symbol into a resultant symbol if the occurrence of a reactant symbol having a predetermined relationship on the grid with the resultant symbol has been detected, the catalyst symbol and any resultant symbol(s) forming a revised outcome of the slot game; and, awarding an award to the player as a function of the revised outcome of the slot game and a second predetermined paytable.