Level PasswordsGo to the Options screen and hold R1, and then press Down, Right, Left, Right, Square, Circle, Square, Triangle, Circle, Square, Right, Left
Movie PlayerAt the Title screen, where you see Abe, hold R1, and then press Up, Left, Right, Square, Circle, Triangle, Square, Right, Left, Up, Right. Abe will say "Ok" and take you to the Movie Player.
Green FartWhile playing a game, hold R1, and then press Up, Left, Right, Square, Circle, X
Voice PuzzleWhile playing a game hold R1, and then press Triangle, Up, Left, Circle, Left, X, Down, Square, Right.