I-Ninja Cheats
Pause the game then enter this code.
Hold R and press B,B,B,X release R, Hold L and press Y,Y, release L, hold R and press B,B
Submitted By: RBURKHEAD760
During game press start to pause and then enter this code to upgrade your sword.
Hold L+R and press X,B,X,Y,Y,B,X,B
Submitted By: sony1kanobi
During game press start to pause and then enter this code to get big heads: Hold R and press Y, Y, Y, Y, release R and HOLD L and press Y, Y, now HOLD L+R and press Y, X, Y