Super Saiyan 4 stands as one of the most controversial yet beloved transformations in the Dragon Ball franchise. Introduced in Dragon Ball GT, this form completely defied expectations by taking Goku back to his Saiyan roots rather than following the sleek, blonde-haired pattern of previous Super Saiyan forms. With red fur covering his body, black hair, and a tail, SS4 represents a fusion of primal Saiyan power and advanced transformation.

What makes Super Saiyan 4 truly unconventional is its design philosophy. While Super Saiyan 1, 2, and 3 progressively added more golden hair and intensity, SS4 stripped away the traditional aesthetic entirely. This transformation requires mastery over the Great Ape form, connecting Goku to his heritage in a way no other form does. The result is a powerful, battle-hardened appearance that divides fans but remains iconic in Dragon Ball history.