All bonuses:
Enter TOOLAZY as a code.
Bike Upgrades:
At the main menu enter UP, LEFT, DOWN, RIGHT, UP, DOWN, DOWN, LEFT, DOWN, X.
Bikes:
At the main menu enter UP, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, UP, X.
Levels:
At the main menu enter UP, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, LEFT, LEFT, X.
Weapons:
At the main menu enter UP, LEFT, DOWN, RIGHT, UP, LEFT, DOWN, LEFT, DOWN, X.