This suggests that in Daima, a Saiyan’s tail is not a necessary requirement for achieving Super Saiyan 4. Further reinforcing this change, Goku is seen transforming into Super Saiyan 4 again in ...

Before Goku, this Dragon Ball Z character unlocked the Super Saiyan transformation in Akira Toriyama's series that might ...

This means that it should technically be possible for Dragon Ball DAIMA’s Goku to combine Super Saiyan 4 with the Kaio-Ken if ...