Note: To do the codes you have to pause the game then push these buttons

Invincibility: Down, L2, Square, R1, Right, L1, Left, Circle
All Weapons: X, Triangle, L1, Up, Down, R2, Left, Left
X-Ray Vision: L1, R2, L2, R1, Right, Triangle, X, Right
Complete Map of Stage: Triangle, Triangle, L2, R2, L2, R2, R1, Square
Items On Map: Triangle, Triangle, L2, R2, L2, R2, R1, Circle
Level Warp: Right, Left, R2, R1, Triangle, L1, Circle, X