Other source:
Goku continues his awesome display of power, but with each blow to Majin Buu, the monster gets even more powerful. He seems to have an unlimited well of energy to use. Bulma calls Trunks on Videl's cell phone to tell him that she left the Dragon Radar in the airplane. He retrieves the radar, and heads back to the lookout. Goku senses this, and decides to end his fight with Buu. He once again tells Buu that he's much too skilled to be taking orders from Babidi. Goku Instantly Transmits himself back to the lookout. This time, Buu takes Goku's advice and turns on his master. He executes Babidi. Meanwhile, Gohan continues his training with the Z Sword.
