During gameplay highlight the 'Exit' option and enter the following codes to unlock the corresponding effect. If the code has been entered correctly you will hear a sound as confirmation.
Unlock Level Select:
Hold L2 and press Right, Right, Left, Right, Triangle, Down, Right. Then resume the game and press 'Select' to choose a new level.
Hold L2 and press Left, Right, Triangle, Down, Right, Left.
Hold L2 and press Up, Up, Down, Right, Triangle, Down.
Added by: Sanzano Feb 20th 2007, ID#14487