A bonus controller for generating a competitive bonus game in a gaming system, the bonus controller having a processor and a memory coupled to the processor. The bonus controller being programmed to: receive wagering data corresponding to a casino game, enter a first player associated with a first gaming apparatus into the competitive bonus game when the first player obtains a qualifying win at the casino game, determine odds for the first player to win the competitive bonus game, vary odds of winning the competitive bonus game for at least a second player after entering the first player into the competitive bonus game, the second player having been previously entered into the competitive bonus game, determine an outcome of the competitive bonus game, and transmit data corresponding to the outcome of the competitive bonus game to a display unit.