Oddworld: Abe's Exoddus

Path Skip:
During gameplay, hold R1 and press circle, circle, X, X, square, square. Be warned: any mudokons you intentionally skip will hurt your score and effect the games ending, so use it wisely.

Invincibility:
During gameplay, hold R1 and press circle, triangle, square, X, down, down, down, circle, triangle, square, X. You wont hear any confirmation.

Secret area:
When you start the game, go right until you see a rock coming out of the ground. Press down and you will go into a secret room.

When Abe talks...:
Without pausing the game, press and hold R1 and press triangle, up, circle, left, X, down, square, right. You will now be able to solve any voice puzzle with any single sound.