Goten is the second son of Goku introduced in the Buu Saga. Since it seems Goku was going to be retired, he was brought in to serve as his new face and all. He's Trunk's best friend and half of Gotenks, who he mainly fights as. But like, what is the point of this character? He's static and hasn't developed at all and in Super, he's literally an afterthought. Goku doesn't seem to have any relation with him and he's only useful as Gotenks. In GT, he becomes unrecognizable as this dater guy, which is really lame, not to mention his awful haircut. So like, what is his purpose?