Abstract: A gaming device includes a processor and a memory storing symbol data, trigger probability data for wager options, and instructions. The symbol data includes reel strips including positions dynamically configurable with trigger symbols associated with feature games, and trigger symbol sets including different versions of the trigger symbols and corresponding to the wager options. The instructions, when executed, cause the processor to receive a selected wager option; configure the reel strips by selecting a trigger symbol from the trigger symbol set corresponding to the selected wager option for the dynamically configurable positions; select symbols from the configured reel strips for display in symbol positions; control display of the selected symbols; and upon the selected symbols including a trigger symbol associated with a feature game, determine whether the feature game is triggered based on the trigger probability data for the selected wager option and an identity of the trigger symbol.