Bio: Goku was sent to earth as a child.  His only mission in life then was to turn into his giant monkey (Oozaru) form and destroy all life on earth, leaving it a desolate and lifeless place perfect for auctioning off to planet buyers.  Unfortunately for the whole auctioning business, Goku suffered a near fatal accident after falling off a cliff, and became friends with the people of earth.  He became their protector, and he did his job very well.  He killed the evil King Piccolo, and defended the earth from his offspring, the Piccolo we all know and love.  He also defended the earth from Radditz, Vegeta and Nappa, the Androids, and Cell.  A fun loving and good natured guy, he is often said to be the Superman of Japan.