The legendary kids of Goku and Vegeta, Goten and Trunks, are truly the chosen ones to have the most bizarre origin stories of their Super Saiyan forms in the entire Dragon Ball universe. One recent ...

Only Goku has mastered Kaioken, using up to x20 but never combining it with Super Saiyan. Combining Kaioken with SSJ is risky due to the emotional stress of SSJ affecting ki control.