To Get all caracters:
Hold Start, O and square at the same
time.
Easy Wins:
During the battle, when you have a fireball like aura
surrounding you, go up to the person your fighting, and keep pressing O. Sooner
or later they will run away to charge up which wastes energy. Keep after them
and continue doing this until they run out of energy. Hit them a couple of
times, then recharge. Go up to them and keep on pressing Up + O at the same
time, and you'll win.
Raise Ending Level to 999%:
After a battle ends, you will go to the
save/continue screen. Hold Select and press TRIANGLE, SQUARE, and X for 5
seconds then release. Now use up and down to scroll between scores.
Play as Super Sayin:
When you fight with Frieza use Krilin. Let
Frieza kill Krilin and then you will be able to play with Super Saiyan Goku.
Thanks to Revolution readers Victor Gregorio Rodríguez and Ryan!