More Points and Stars
Tip 1: Finish a stage as quickly as possible to get more points, too - don't just take a long time to set the shot up or you will end up losing points.
Tip 2: If you absolutely HAVE to knock something out of the way to get through, make sure the ball bounces back to you so that you don't lose a basketball.
Tip 3: You need a certain amount of stars to unlock the next area, and each area begins and ends on a multiplier of twentyfive - for example, after beating level 25, 50, 75, etc.
Tip 4: If you do not have enough stars, go back through the levels that you one-starred before and try to get more stars on them.
Tip 5: Start at the earliest level that you can as the earlier they are, the easier that they tend to be.