To unlock Vic Viper's Zodarius Mission, fight his in Boss Battle Mode. During the battle, pause the gane enter this code: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, L1, R1. The Konami Code!

While playing the Zoradius mission, pause and press UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, L1, R1.

Earn stellar rankings (A, S or SS) to see new pictures after beating the game.

Beat the game to unlock new Frames. These new models will be available for use in the main game and in multiplayer!

To see Ken in a tank top, instead of picking her up once in the Energy Plant, take her down to the lava twice. If she comments on the heat more than once, she will switch to the cooler tank.