Monster House Cheats & Codes

Full Health

During game , hold L2 + R1 and press x (3), triangle.

All Characters Gun Upgrades

During the game, hold L2+R1 and press square, triangle, square, X, square, circle, square (2).

Unlock All Art Gallery Images And Toy Monkey's

During the game, hold L2+R1 and press triangle, circle, triangle, circle, square (3), X.

Full Secondary Ammunition

During the game, hold L2+R1 and press triangle (2), X (2).

Monster House Unlockables & Awards

Completion Bonus

Successfully complete the game to unlock the ruby Key and the Hard Difficulty setting.

Want even more Monster House Cheats?

We have Monster House cheats for PlayStation 2, Game Boy Advance, GameCube, and Nintendo DS on CheatCodes.com. Give them a try, since cheats for other game systems sometimes work on PlayStation 2 games, too!