Samurai Jack: The Shadow of Aku Cheat Codes for Playstation 2

Crystal Sword:
To use the crystal sword during battle enter the following code during gameplay. Left Analog Stick Down + Right Analog Stick Up, X, Circle, Square, Triangle.

Get the flame blade
hold left stick up and right stick down then press square,x,circle,triangle

Restore health meter
hold left stick left and right stick right then press x,triangle,square,circle,x,triangle,square ,circle

This will give the maxium upgrade to the Zen meter and fill it.
During gameplay hold the Left Stick left and the Right Stick right, then press Circle, X, Square, Triangle