A gaming device including an outcome or award event which is triggered from a base game when at least one positive modifier symbol and at least one award symbol are indicated on the reels. In the bonus game, the positive modifier symbol includes at least one positive modifier which increases a bonus...http://www.google.de/patents/US20050049039?utm_source=gb-gplus-sharePatent US20050049039 - Gaming device having competing positive and negative outcome events
