Secret Rooms
Description: 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

Harder Difficulty
Description: Unlock a harder difficulty level

How to unlock: Beat the game once through in its entirety on the default difficulty setting.