Goku never became ussj. he went from 1 to 2 without goin ussj. u might be thinkin of a time his muscles got big and he was ssj but anywayz that sounds like a kool fan idea i might think about doin
Im sorry I have to do this DakD but YES goku does become ASSJ, and USSJ.
the 2 stages that Trunks and Vegeta reached while in the time chamber.
Yet goku reached both ASSJ and USSJ VERY QUICKLY
So, I dont know what episodes you watch but GOKU does become ASSJ,USSJ, and FINAL stage of Super saiyan. Then in the otherworld he reaches >> Ssj2 > SSj3
Umm. .That is not USSJ Goku, thats Goku from namek, they just made his muscles bigger in the pic
God, do all of you know anything about DBZ, sheesh..Im leaving this thread alone now.
EDIT: You hit it on the DOT Morrone! <<[I confirm he went ussj]