Dragon Ball Z: Sagas

Goku Finishing moves:
Press Triangle(5x).

Bonuses:
Finish the game under any difficulty setting to unlock:
Broly Hidden Forms
Gohan Hidden Forms
Goku Hidden Forms
Krillin Hidden Forms
Tien Hidden Forms
Trunks Hidden Forms
Vegeta Hidden Forms
Yamcha Hidden Forms

Unlock Pendulum Room mode:
Finish the entire game once

All bonuses:
Go to the options screen, then press Up, Down, Up, Down, Back, Start,
Back, Start, Y, A, Y, A, X, X, B on your controller.

Invincibility:
Pause the game play, then go to the controller options, after press
Down, A, Up, Y, Back, Start, Right, X, Left, B.

Unlock all upgrades
Pause the game play, then go to the controller options, after press
Up, Left, Down, Right, Back, Start, Y, X, A, B.