Start with bonuses:
Play the games in practice mode before starting the real game to obtain the following bonuses: extra life (driving game), extra bullets (shooting game), and a meatball (fighting game).

Hint: Level 4:
You cannot shoot rocks. Watch out for these and avoid them. There are usually about four of them in this level.

Hint: Grenades and driving:
When a grenade is thrown, the guns cannot be fired it explodes. Slow down if car is approaching during this time.