Patent ID: 8550897

Claim:
A method for conducting a wagering game on a gaming system, the wagering game including a base game and a bonus game, the gaming system including one or more processors for conducting the wagering game and one or more display devices for displaying aspects of the wagering game, the method comprising: conducting a plurality of base games via at least one of the one or more processors; displaying, via at least one of the one or more display devices, a randomly determined outcome for each of the conducted base games; displaying, via at least one of the one or more display devices, a feature pool comprising a plurality of storage fields each configured to display one or more items; for each and every one of the conducted base games, removing one or more old items from and adding one or more new items to the storage fields of the feature pool displayed via at least one of the one or more display devices, the added one or more new items being either at least one randomly determined type of bonus-game-modifier, in response to a predetermined event occurring in the randomly determined outcome in the respective base game, or a non-modifier, in response to an absence of the predetermined event in the randomly determined outcome in the respective base game; and in response to a triggering event, conducting the bonus game modified by a plurality of the randomly determined types of bonus-game-modifiers displayed in the feature pool.