After you beat Neo Exdeath, before he completely crumbles away, hold down Start and repeatedly alternate between tapping "L" and "R". Do it enough and the game will reset. Now restart your game and you'll have a new class- Super Hero. Super Heroes have max in all stats, and incredible attacks that do anywhere from 20,000 to 180,000 HP of damage. Yes, you read right- 9,999 is NOT the maximum.

Try it out. Pay Exdeath back for the pain he was the first time. =)