Unlock 9 tailed fox Naruto:
     To  unlock  9  tailed  fox  naruto  beat 1 player mode with every
characher 2 times after you get Rock Lee.

Unlock Rock Lee:
     To unlock Rock Lee beat story mode without having to continue.

Play as Unmasked Haku:
     Highlight  Haku  in  Character select and press X. When you fight
your playing as Unmasked Haku.