A gaming device having a bonus scheme wherein a combination of bonus symbols trigger a bonus game and any one of the bonus symbols in the bonus game provides a player with an award. The award may be an extension of the bonus game by providing the player with additional spins or games. Also, the award...http://www.google.com/patents/US7927206?utm_source=gb-gplus-sharePatent US7927206 - Gaming device having a re-triggering symbol bonus scheme
