A gaming machine having features for increasing player appeal is set forth. The machine generally includes a processor, a display, and a memory device. The processor randomly selects one of a plurality of outcomes of the gaming machine in response to a wager. The display displays visual elements to be viewed by the player. The memory device is coupled to the processor and stores at least two data sets for producing at least two different types of visual and/or audio elements in the basic game or bonus game, or at least two different types of bonus game formats. The processor selects one of the two data sets in response to the occurrence of a predetermined time, a number of wager inputs by players of the gaming machine, or after determining a favorite play content based on the number of wager inputs by players.