Cheat Mode
Hold Select and press Start at the title screen. The options screen will appear. Hold R and press Up + X, Right + A, Down + B, Left + Y. The cheat mode screen will appear allowing switching to a two player game, use of any fighter, and selecting the background music and graphics.

Infinite Continues
Hold Select and press Start at the title screen. The options screen will appear. Hold L and press Up + X, Left + Y, Down + B, Right + A. A credit option screen will appear allowing selection of one, three, five, or an infinite number of continues.