Of the main characters, only Goku has learned to use Kaioken (in Dragon Ball Z, in the anime). After SSJ was introduced in the series, many fans expected that he would eventually combine both SSJ ...

While even the Kaio-Ken wouldn't have been enough to close the gap between the two, Goku specifically didn't need to be the one to use it. Dragon Ball GT was not the sequel to Dragon Ball Z that ...

Cell can use a move once exclusive to Goku, the Kaio-Ken, thanks to his Saiyan DNA that Cell took previously although it was ...