Watch Dragon Ball Z Kai - Season 6: Majin Buu Saga Episode 126 I'll Take Care of the Majin, Vegeta's Final Desperate Battle!

Vegeta, willing to put his life on the line, begins his assault on Buu, managing to blast a hole through him. However, Buu manages to regenerate himself and builds up his anger to create a giant explosion, dealing a great amount of damage to Vegeta.