Board Thread:Game News and Announcements/@comment-26239911-20200116120612/@comment-34578108-20200120091430

Okay even if BoG isn't canon, the entire movie was stretched into an arc in the anime so SSG is definitely canon for Goku. And since Broly movie is also canon, Vegeta also has SSG, which makes sense, it seems a little dumb that he was able to go blue without first reaching SSG