Unlockables
[PS2 Cheat by: Cheat Masters ]
Hard Mode - Clear the game.
Special Mode/New Costumes- Clear the game.
Sum41 and Span Music Videos - Clear the game.
New weapons - Clear the game (baseball bat and laser scoped handgun).

Special mode
Win the game.

Laser-sight pistol :
Win the game under the normal or higher difficulty setting, then start another game in special mode. The 1st available gun will now be a pistol with a laser sight.

Alternate costumes/outfits:
Win the game, then start another game in special mode. *** Only characters that survived will have an alternate costume.

Morgenstern bat
Win the game, then start another game in special mode.

FMV sequences
Win the game to unlock a making of, behind the scenes, and 2 music videos.

Extras
Alternate menu background : Win the game.
Gallery 1: Win the game under the hard difficulty setting.
Gallery 2: Win the game in special mode.

PS2 Cheats for Obscure

Obscure cheat codes

Obscure cheats