Each level has a specific objective. After completing that objective, bonus time begins. During this time, star pegs will appear in the level. Hit them to get 1,000 points. It is to your benefit to complete the objective as soon as possible to have plenty of balls remaining for the star pegs.

When you launch a ball, you can launch another one a few seconds later. If both balls collide with each other, you get a "double tap" bonus worth 500 points.

When a goo flying a plane appears, hit it to earn about 2,000 points. Hit the mini-ufo goo to earn an extra ball.