Unlockables
During gameplay enter the following codes to unlock the corresponding effect.
Unlock Full Health:
Hold L1 + R1 and quickly press X, X, X, Triangle.
Unlock Full Secondary Ammunition:
Hold L1 + R1 and quickly press Triangle, Triangle, X, X.
Unlock ALL Gun Upgrades for ALL Characters:
Hold L1 + R1 and quickly press Square, Triangle, Square, X, Square, Circle, Square, Square.
Unlock ALL Toy Monkeys and Art Gallery Images:
Hold L1 + R1 and quickly press Triangle, Circle, Triangle, Circle, Square, Square, Square, X.
Unlock Completion Bonuses:
Complete the game to unlock Hard difficulty setting and the Ruby Key.
More tricks, tips and cheats for this game are right here - Monster House cheats
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