Unlockable: Harder Difficulty
To unlock a harder difficulty level, beat the game once through in its entirety on the default difficulty setting.
Unlockable: Secret Rooms
Enter the cheats below at the game’s title screen (where it tells you to press start) to unlock the secret room listed.
- Aaron Sedillo Room – Right, Down, Left, Up, L1, R1, Triangle, Triangle, X, X, Start
- EuroGamer Room – Down, Up, Down, Up, Left, L1, Square, L1, Square, Triangle, Start
- GamesRadar Room – R1, Triangle, Square, Square, Up, Down, L1, L1, Up, Down, Start
- IGN.com Room – Up, Down, Triangle, Square, Square, Triangle, Down, Up, L1, L1, Start