When do you mean? If you are talking about just typically then yes, he did go super saiyan 4. He did mostly in Dragonball GT.
Goku turn into kid Goku in episode 1 or Dragonball GT because Emperor Pilof accidentally wished for Goku to be a kid again.
Dragonball GT Episode 1: Secret of the Dragon Balls
Episode 230 "Super Saiyan 3"
Dragon Ball Z Kai episode 47
When do you mean? If you are talking about just typically then yes, he did go super saiyan 4. He did mostly in Dragonball GT.
Goku turn into kid Goku in episode 1 or Dragonball GT because Emperor Pilof accidentally wished for Goku to be a kid again.
He first transforms in the episode "Upgrade to Super Saiyan", which is episode 129. Or 114 of the cut version. So far, that episode of Dragonball Z Kai has not come out.
Goku turned Super Saiyan 4 in the episode Back in the Game from the Dragon Ball GT series. The date the episode originally aired was January 22, 1997, although the American release date was May 29, 2004.
Dragonball GT Episode 1: Secret of the Dragon Balls
Goku turns SSJ4 to when he needs to defeat Baby Vegeta
goku can kill superman becuse he can turn ssj4 and crush superman
He couldn't at the end of dragonball gt.
Theres officially up to ssj4
l1+r3
Goku Got mad of Not beating Omega Shenron, And Goku Turns Super Saiyan 4 Because he gets mad.
Actually trunks mentioned that he has fused with goten susper saiyan 3 but it is never shown-ed he motion's it in the episode when vegeta and goku fuse super saiyan 4He can't. It seems that only pure blooded sayians can reach ssj4 since Goku, Vegeta and Gogeta were the only sayians to reach that form in Dragonball GT.