Enable All Bonuses:
Pause the game then press Up, Down, Left, Right, Left, Right, Square, R2.
Max Health and Weapons:
Pause the game then press Up, Down, Left, Right, Left, Right, Square, Circle.
Unlock Meat Club:
First enable 1 handed class weapons. Then pause the game and press Up, Down, Left, Right, Left, Right, Left, Left.
Unlock Minotaur:
First enable 1 handed class weapons. The pause the game and press Up, Down, Left, Right, Left, Right, Right, Right.