Goku is a Saiyan, Born and raised on earth. He's Extremely friendly and a GENIOUS When it comes to martial arts,.... but Not very bright. Fighting is his TRUE Passion over ALL else (Unless food is involved) But He dose NOT fight to defeat others,.. He Fights to Improve himself and Eternally increase his OWN power as High as it can go. But Not to be on top,... JUST to TRULY Test the limits of his OWN Power. He's not much of a Hero per say, but he'll gladly do ANYTHING to protect his Friends.