Cheats:
Arron Sedillo challenge room
Press Right, Down, Left, Up, L1, R1, Triangle(2), X(2), Start at the “Press Start” screen.
EuroGamer challenge room
Press Down, Up, Down, Up, Left, L1, Square, L1, Square, Triangle, Start at the “Press Start” screen.
GamesRadar challenge room
Press R1, Triangle, Square(2), Up, Down, L1(2), Up, Down, Start at the “Press Start” screen.
IGN challenge room
Press Up, Down, Triangle, Square(2), Triangle, Down, Up, L1(2), Start at the “Press Start” screen.
Unlockables:
Super Hard difficulty
Complete the game.