Wagering game with multiple overlying reel strips for triggering events or outcomes

摘要

A method for enabling a portal game on a wagering game device includes the acts of using a processor operatively associated with the wagering game device to conducting a wagering game on the wagering game device in accord with a first math model and using a portal game controller, which may be the processor operatively associated with the wagering game device or a separate controller, operatively associated with both the portal game and the wagering game device, to overlay a portal game over the wagering game. The portal game includes a second math model that is mathematically independent from the first math model of the wagering game.