Here are some cheats and tips for the game Dragon Ball Z: Sagas.
All bonuses:
Press Up, Down, Up, Down, A, Start, X, Start, Y, A, Y, A, X(2), B at
the options screen.
Invincibility:
Press Start to pause game play, then enter the controller options.
Then, press Down, A, Up, Y, Start(2), Right, Left, X, B.
All upgrades:
Press Start to pause game play, then enter the controller options.
Then, press Up, Left, Down, Right, Start(2), Y, A, X, B.