Full Pause Screen
Pause the game and press X + Y.
Fart Sounds From Doctor Hawkins
While playing as Doctor Hawkins, press L + R + Left + A.
While playing as Max, hold R and press Up(4).
Pause the game, then hold L + R and press B, A, B, A.
Pause the game, then hold L + R and press A, B, A, B.
Pause the game, then hold L + R and press Up, Down, Right, Left, A, Y, B, X, X +
Start to play as a character that is part Kurt, Max, and Doctor Hawkins.
Kurt Only Wearing Boxer Shorts
At the main menu, hold L + R and press X(2), Y, X.