A gaming system includes an input device, at least one display, and at least one controller. The input device receives a wager input for playing a wagering game. The at least one display displays a basic wagering game and a community bonus game. The at least one controller is operative to provide a player with a bonus-game asset that is usable in at least a first play of the community bonus game. The bonus-game asset is capable of having at least a first level and a second level that provides a higher bonus-game enhancement than the first level. The at least one controller is further operative to determine if that the bonus-game asset is available to the player for use in a second play of the community bonus game and to alter the level of the bonus-game asset from the first level to the second level for use in the second play.