When plunging the ball go for lanes 2 or 3 as lanes 1 and 4 can sink down the middle. Go for the drop targets with the light on them as those will score bonus. To increase bonus, complete 1-4. If you need 1 or 4 try Shatzing. Another way to increase bonus is to complete drop targets then hit the middle switch. This is also what you have to do to make all drop targets come back up. That is about the whole game. It is a very fun game to learn how Shatzing works on for cheap.