A gaming machine and method comprising a primary game with a plurality of gaming symbols and a separate bonus indicator. Operation of the bonus indicator is automatically initiated upon commencement of the primary game and play of the bonus indicator is of approximately the same duration as play of the primary game. The outcome of the bonus indicator may be entirely independent of the outcome of the primary game. A positive outcome on the bonus indicator may yield either a prize for the player or an opportunity to play a bonus round game. In its preferred embodiment, the invention includes a five-reel slot game as the primary game and a single-reel slot game as the bonus indicator.