Piccolo is the son of King Piccolo who Goku defeated. He used to be evil but he later becomes a good guy. He trains Gohan when Gohan was still a kid. He later sync with a namekian hero named Nail and he later fuses with the guardian of the earth. The guardian of earth was a namekian named Kami. Piccolo fuses with Kami. His best attack are the Hellzone Grenade and the Special Beam Cannon.