Shark Tale Invincible Oscar
While playing the game, press Back, then hold L and press A, B, A, Left(2), X, R, Down, X(2).
Two extra Clams and fame
While playing the game, press Back, then hold L and press B(2), A(2), B, A, B(2).
Attack mode on at all times
While playing the game, press Back, then hold L and press B(4), A, B(3) or B(4), A, B(4).
Replace all Pearls with Fish King coins
While playing on any level with Pearls, press Back, then hold L press B, A, B(3), A, B(2).
Completing dance mode
To complete dance mode easier, press A + X + B + Y on each arrow; it will count as the arrow it is pointing to, even doubles.
Pearls in Chapter 3
If you attack a puffer fish, many pearls will come out.
Staying hidden in Chapter 9
When you must sneak around the fish with lights on their heads or the ones with torches, there are some tables with cloths on them that you can go under without being detected.
Avoid being caught in Chapter 9
To avoid being caught by police fish, go into houses until the cops pass.