An expert at PR, Hercule has always been a champion at gaining credit for himself. He is not always the tough guy he appears to be: in fact he can be quite cowardly. He was the World Martial Art’s Champion of the previous tournament and manages to win the title again by doing a side deal with Android 18, the other finalist for the championship title.
Despite his faults, he does the Earth a good turn. He befriends Buu, eventually convincing Buu to stop hurting the people of Earth. Unfortunately, this pledge does not last when Buu becomes angry because his puppy is hurt.