Invincibility
     Pause  gameplay, hold L2 + R2 and press Up, Up, Down, Down, Left,
Left, Right, Right, Square, Triangle, Square, Triangle, Select.

Mixed Character
     Pause  gameplay, hold L2 + R2 and press Up, Down, Right, Left, X,
Triangle, Circle, Square, Square + Start.

Kurt in Boxer Shorts
     At  the  Main  Menu,  hold  L2  +  R2  and  press Square, Square,
Triangle, Square.

Panning Camera
     Pause gameplay, hold L2 + R2 and press Circle, X, Circle, X.

Mad Camera
     Pause gameplay, hold L2 + R2 and press X, Circle, X, Circle.

Slow Motion
     As Max, hold R2 and press Up, Up, Up, Up.

Fart Sounds from Doctor Hawkins
     As Doctor Hawkins, press L2 + R2 + Left + X.

Stationary Camera
     Pause gameplay, hold L2 + R2 and press Circle, X, Circle, Triangle.