Samurai Jack: The Shadow Of Aku Cheats

Crystal sword:
Press Analog-stick Down + C-stick Up, A, X, B, Y while playing the game

Maximum Zen:
Hold the Analog-stick Left + C-stick Right, then press X, A, B, Y while playing the game.

Sketch gallery:
Finish the game under easy difficulty.

Background gallery:
Finish the game under normal difficulty.

Model gallery:
Finish the game under hard difficulty.