Dragon Ball: Evolution Cheats - PSP
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Unlock Secret Acts
After finishing Story Mode, you can go back and choose the first option (Act Select) to play each Act individually. This is easier than playing the whole story again.
Secret Act 1 - Get an A or above on all 12 Acts.
Secret Act 2 - Beat Secret Act 1.
Unlock Characters
Chi-Chi, Mai, Oozaru, Fu Lum, Piccolo - Finish Story Mode once.
Neo Piccolo - Finish Secret Act 2.
Unlock Alternate Costumes
Press and hold [R]+[L] and select your character at the Character selection screen.