Yeah? But that's not the same as canon. Canon would be like if it's in with the Sonic Team games. This ain't, it's isolated to Sonic Boom stuff. ..Also it's pretty funny and cheesey and I kind of love it? Like, it's clearly very old Saturday morning cartoon. Shadow's about as threatening as Jack Spicer and I love it.
Well honestly unliek the other Boom incarnations this Shadow is basically identical to the Shadow they had post-Colours. And he reminds me more of Vegeta, honestly. The difference is Sega get to decide the direction of the Sonic franchise, while Dragon Ball has an actual individual owner
I mean, has Shadow really appeared post-Colors? Generations he had like... a line of dialogue? Anyway, I see your Vegeta and raise you a 80s TMNT Shredder