No "Out of Bounds":

Just before the game starts, during the loading sequence (when it says who's playing who), enter O, O, X, Left and you can now play with no out of bounds!

Hey No Fair:

To conceal your play from your opponent press Up, Up at the play selection screen.

Unlimited Turbo:

Just before the game starts, during the loading sequence (when it says who's playing who), press L1 (5 times), Triangle, Circle (4 times), now you will not run out of turbo!

Field Goal Percentage:

After you pick your teams on the screen that says who is playing who, press X and then Down. This will show your field goal % percent.