Goku is the main character of the Dragon Ball anime. He has black, spiky hair and dark eyes, standing at a medium height with a highly muscular, athletic build. He is incredibly pure-hearted, naive, and cheerful, often displaying a childlike innocence and a goofy sense of humor. Driven by an obsessive passion for martial arts, he is an extremely hard trainer, disciplined, and resilient. While he can be simple-minded or "stupid" regarding social norms, he is a tactical genius in battle