The Kaioken technique multiplies the user's power level but causes immense strain on the body. Goku's mastery over Ki control allows him to stack Kaioken effects and later combine it with Super ...

Super Kaioken combines Kaioken with Super Saiyan, amplifying powers but is not considered canon in the manga. Only Goku has managed to use Super Kaioken, making it a unique combination of techniques.