How do you beat Majin Buu in Buu's Fury?

Avoid Buu and attack him if he comes near you. Then Buu should shoot his candy beam (the pink laser that turns you to candy). Avoid that and Bobity should fly down; punch him and he should fall down. Then start hiting Buu with attacks until Bobity gets back up. Repeat this process 2 or 3 times and you'll beat Buu.