After choosing a character and stats the next screen will have a cheat button. Click on cheat and enter the text.

• The Springs Are Hell: hellissprings
• Start with $250,000: moneygrowsontrees
• Play as Naru: naruhaseyes
• Insane conversations: sofarsogood
• Shinobu dress up game: rainbowsrgood
• Motoko dress up game: motokoismotoko
• Secret movie: eva4hidden
• All moves: allyourmoves
• All stats are 100: theincredibleyou
• Mutsune dress up game: smashwatermelons
• Random credits: randomamv
• Girls walk around with less clothing: crazygirlmot

Submitted by Chris_7988
Correction by Chuck Condon