the red-colored eyes of Toriyama's concept art eventually made their official anime appearance -- over two decades later -- ...

Instead of its usual black, Goku's hair and eyes change to red, much like his Super Saiyan God form. During the ...

Super Saiyan 4 would have been overshadowed by God Ki forms so it wouldn't fit in terms of power hierarchy. Super Saiyan 4 could work in Super as a character-specific transformation for Broly or ...