1. Pick a combat race on the “Yo sushi” map Route B.
2. when the race starts, drive backwards. where the single powerup spawns.
3. keep picking it up until you get the homing missile.
4. when the opponents are about to cross the finish line, you shoot your rockets, to land several super long shots on them.
6. when you think you made enough gold, finish the race and get your bonus cash,