|“||Hey! Majin Buu, what do you think you're doing? I'm the one who created you!... Hi, I'm your dad.||„|
After Bibidi awakened Kid Buu from his slumber, he started taking him from planet to planet to destroy them all in his quest to dominate the universe. Early on, Buu almost recklessly killed Bibidi, who then told the monster that he was his "dad" in an attempt to control him. Later, he took Buu to the world of the Kais, where the monster killed the Western and Northern Supreme Kais, and absorbed the Southern Supreme Kai, becoming Super Buu in the process. He then tried to kill Eastern Supreme Kai, but the Grand Supreme Kai protected him, and when Buu absorbed him, he became the much weaker and less evil Fat Buu due to the goodness of Grand Supreme Kai's soul.
Later, Bibidi created a magical ball to seal Buu inside of between conquests, and eventually brought the ball to Earth. However, before the wizard could release Buu again, Supreme Kai killed him, and the ball of Buu was left dormant for millions of years until his doppelganger Babidi picked up where his "father" left off.