# Full health

While playing the game, hold L1 + R1 and quickly press X(3), Triangle.
# Full secondary ammunition

While playing the game, hold L1 + R1 and quickly press Triangle(2), X(2).
# All gun upgrades for all characters

While playing the game, hold L1 + R1 and quickly press Square, Triangle, Square, X, Square, Circle, Square(2).
# All toy monkeys and art gallery images

While playing the game, hold L1 + R1 and quickly press Triangle, Circle, Triangle, Circle, Square(3), X.
# Completion bonuses

Successfully complete the game to unlock the Hard difficulty setting and the Ruby Key.
# Overflowing toilet

When you get to the bathroom in Chapter 1, start flushing the toilet until it overflows. Stay in the bathroom and eventually you will go to heaven.