He is the son of the strongest man in the world and has the ability to reach Super Saiyan 2 when he is angered to the extreme. When he was just 5 years old he didnt know how to fight but with some harsh training from piccolo he strated to reveal his true powers. He takes piccolo as a second father figure and does so while his father is in the other world.Gohan could have become the world strongest fighter but he did not like the idea of fighting and after the cell game he studied more and trained less. In the second part of dragonballZ he is a teenager who goes to Orange High School to become a great scholar his mothers dream (she never lets him train and doesnt want him to become a rebel)and disgueses himself as the Great SaiyaMan.To stop criminals and deliver justices(yeah right) his technigues include the Kamehameha,Masenko,and goes only up to SSJ2.