Kanzenshuu provides the back history, context, and facts surrounding Super Saiyan 4's design by Katsuyoshi Nakatsuru (not Akira Toriyama!)
Super Saiyan 10: Dragon Ball Z's Fiercest Form (and Why It'll NEVER Exist), Explained
Dragon Ball Super: Broly Super Saiyan Blue Gogeta Rumor
Dragon Ball: Goku's 20 Most Powerful Transformations
My super saiyan 4 blue evolved custom : r/Dragonballsuper, super saiyan 4
Rumor Guide General Rumors
Who Created Super Saiyan 4?
My super saiyan 4 blue evolved custom : r/Dragonballsuper, super saiyan 4
EL SUPER SAIYAJIN 4 by salvamakoto, saiyajin 4
EL SUPER SAIYAJIN 4 by salvamakoto, saiyajin 4
Saiyan Warriors with Ultimate Power] Super Saiyan 4 Goku & Super, gogeta ssj4 icon