Goten Character Facts

Goten's appearance is very similar to Goku's childhood look, including messy, unkempt hair and a playful face. He also wears a similar gi to Goku's, minus the kame symbol, in the Majin Buu Arc. His appearance drastically changes as he grows older, resembling his brother Gohan more than his father as a teenager; he has the same long messy hair as Gohan at a younger age. Towards the end of Dragon Ball Z, Goten is seen with a shaggier hairstyle. Goten also shares the typical Saiyan appetite like his father and his brother. In Dragon Ball GT, his hairstyle becomes spiky, straight, and tilted. 
As a child, Goten is naive and fun-loving like his father, and kind-hearted like both his father and older brother. He is also somewhat mischievous due to being influenced by his best friend Trunks, and joins him in their many antics. As a teenager and an adult, Goten is still kind-hearted and considerate of others, but is seen to be more mature. 
Goten is the second son of Chi-Chi and Goku, and younger brother to Gohan. Goten is born nine months after the defeat of Cell in the Cell Games Saga. As Goku dies during the Cell Games, while Chi-Chi is pregnant, Goten does not meet his father Goku until he reaches the age of seven. Goten is not pushed in school as much as Gohan is, and instead is trained in martial arts by Chi-Chi. The reasons for this are never fully explained, but it seems to have something to do with Goku's death. 
Goten gains the ability to transform into a Super Saiyan at a very young age, and is the youngest known half-blooded Super Saiyan in the series. Goten uses this transformation throughout Dragon Ball Z and Dragon Ball GT. He achieves the form while training with his mother, and he first transforms onscreen during his training with his older brother, Gohan.