the ultimate saiyan is the strongest saiyan form ever. the only person to attain this form is vegeta. after getting beaten by krillin,he convinced majin buu to absorb him and broly after they seperated he vowed revenge so he went to the dragon of power and asked to get a secret training location a place where the gravity is 999,000,000,000,000,000,000,000,000 times that of jupiter and became a god. \
it is as strong the ultra namek