Goku is the main character in all of the different Dragonball series. Goku starts the Dragonball series as a young boy with a tail that loves to fight. He is extremely good natured and humurous throughout the entire series. When he is a child he has a staff called the "Power Pole" that can extend up to 280 kilometers. Throughout the DragonballZ series he is the hero and is always saving the day from the scum of the universe. He loves to fight and spares many villains lives because he is always seeking a challenge. Goku is Vegeta's arch-rival because Vegeta is jealous of his power and knows that he can never match Goku's strength. He was trained by Master Roshi, King Kai, and of course by himself. He is the master of the Kaioken attack and of the Genki-Dama (spirit bomb)