At the "Press Start" screen, press Right, Down, Left, Up, L1, R1, Triangle(2), X(2), Start to unlock the fan made challenge room at the "Challenge Room" menu.
At the "Press Start" screen, press Down, Up, Down, Up, Left, L1, Square, L1, Square, Triangle, Start to unlock the EuroGamer challenge room at the "Challenge Room" menu.
At the "Press Start" screen, press R1, Triangle, Square(2), Up, Down, L1(2), Up, Down, Start to unlock the GamesRadar challenge room at the "Challenge Room" menu.
At the "Press Start" screen, press Up, Down, Triangle, Square(2), Triangle, Down, Up, L1(2), Start to unlock the IGN challenge room at the "Challenge Room" menu.
At the "Press Start" screen, press L1, Square(3), Right, Down, L1, Left, Triangle, Down, Start to unlock the Major Nelson challenge room at the "Challenge Room" menu.
Successfully complete the game to unlock the Super Hard difficulty.
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