This bunch of codes (apart from the last one) will help you in the game if you are struggling. To enter them go to the 'New Game' option at the 'Main' menu and hold L1 + L2 + R1 + R2 and enter the code for the corresponding cheat. If you have entered the code correctly a confirmation message will appear on screen.
Unlock Infinite Health:
Press Square, Triangle, Left, Up, Right.
Unlock Infinite Shadow Stamina:
Press Circle, Square, Triangle, Circle, Down.
Unlock Infinite Adrenaline:
Press Left, Right, Left, Circle, Square.
Unlock Infinite Armour:
Press Up(3), Square, Down.
Unlock Infinite Dual Guncons:
Press Triangle, Circle, Up(3).
Unlock Infinite Human Shields:
Press Square, Triangle, Circle, Triangle, Square.
Enemies Are More Accurate:
Press Triangle, Square, Left(2), Circle.
Added by: Sanzano Feb 25th 2008, ID#29266