Extra Life
Press Up, Down, Square, L2, L1, Down, Up, Down (2), Up.
Extra 10 Magic Pickups
Press L1, Down, L1, L2, Square, Down, Up, Down, Up (2).
4 bonus door keys
Press Square, L2, Down, L1, L1, Up, Square, Down, Up, Down.
All Gallery Items
Press Square, Down, L2, Down, L1, Square, Up, Square, Down, Down.
Open all levels
Press Down, L2, Up, L1, Square, Down, Down, Down, Down, Up.