In one embodiment, the gaming system includes a plurality of symbols for a play of the primary game, wherein at least one symbol from this set of symbols is a designated symbol. In this embodiment, for a play of the primary game, the gaming system randomly displays a plurality of symbols from the set...http://www.google.de/patents/US8113942?utm_source=gb-gplus-sharePatent US8113942 - Gaming system and method having a bonus sequence with available symbols determined in a base game
