Super Saiyan 4

Super Saiyan 4 is a Saiyan Transformation present in the anime only sequel Dragon ball GT, and that has never been mentioned in the Dragon ball magna. The only way a Saiyan can attain Super Saiyan 4 is if he is already a Super Saiyan, can transform into a Golden Great Ape and regain conscious control over the form. This transformation is the ultimate combination of both the humanoid Super Saiyan and theGreat Ape After this form is attained once, it can be accessed at any point. It is also hinted that only pure-blooded Saiyans can achieve this final and ultimate Super Saiyan transformation, as Baby had full consciousness while as a Golden Great Ape, but he still did not transform. However, Baby was a parasite, possibly halting the final evolution. Another possible reason for Baby's inability to transform is that since it was Vegeta's body, Vegeta needed to be fully conscious, which he was not because of Baby's control over him. It is unknown if Gohan or any of the other Human/Saiyan hybrids could ever reach this form, as they too had tails at birth. Somehow, Old Kai already knew about the Super Saiyan 4 form and its abilities. It was unknown if the transformation is possible to use if the tail is removed until Vegeta transformed to Super Saiyan 4.

Apperance and Power
In this form, the Saiyan's hair color differs, the same goes for the tail and the body is covered in red fur. A Saiyan in this form also possesses a shadow trim around the eyes and over the eyelids that varies in color, such as crimson. The hair is lengthened, but not nearly as long as a Super Saiyan 3's. The aura in this form loses the arcs of electricity and replaces it with sparkles (in Gogeta's case), and also becoming pure fire. Super Saiyan 4 VegetaAdded by Saiyan Prince However, in the case of the Fusion warrior Gogeta, the coloration of the aforementioned features seemingly switch, as Gogeta's hair became a bright shade of red whereas his fur became a dark shade of brown and the trim around his eyes were black instead of red. The massive power and speed enhancements brought on by this form easily make it the strongest Super Saiyan form in the series.