Patent attributes
A gaming machine initiates a feature game in response to a base game outcome comprising a predetermined number of a configurable symbol. For an initial round of a quantity of rounds for the feature game, the gaming machine retains each of the configurable symbol from the base game outcome at a corresponding feature game display position of a feature game outcome. For each feature game display position not displaying the configurable symbol, the gaming machine determines whether to display the configurable symbol with an assigned prize indicia at the respective feature game display position. After the quantity of rounds, the gaming machine awards a prize chance for a specific prize in response to a prize indicia for the specific prize being assigned to the feature game outcome. The gaming machine further awards the specific prize in response to randomly determining that the prize chance was successful.