Gaming devices comprising a standard gaming unit, e.g., three reels, and a discernible additional payout indicator, e.g., a rotatable wheel. A preferred bonus payout indicator is clearly visible by the player and is actuatable when the reels of the slot machine stop on certain predetermined indicia....http://www.google.de/patents/US6089978?utm_source=gb-gplus-sharePatent US6089978 - Method of playing game and gaming games with an additional payout indicator
