Xicor is a half saiyan and half kai. He is the son of Goku and the West Kai, Lila. He was born a SSJ3 because thats how powerful he was. He was born from Goku's DNA fused with Lila's. Since he was alive when born he had an automatic right to leave hell so he did. He sent out to find Goku and beat him to prove that he is the strongest in the universe. He came to Earth and defeated Goten and Trunks. Vegeta and Gohan than showed up and turned into SSJ4's, but they were beaten, after Goku came, turned into a Super Saiyan 5 and killed Xicor.