Talk:Donkey Kong VS Knuckles/@comment-27473767-20160215032752/@comment-26964335-20160318161946

Shadow could always be brought back to fight Wario in a future fight, remembered they brought back a few fighters before and they aren't against them returning (plus Season 3 is supposedly bringing a fighter from Season 1, even though Link is obviously the 1 returning, Shadow could still come back as could Pikachu).

Vegeta vs Shadow had a theme to it as well (being rivals to the main heroes, plus they looked slightly similar too which was why they went with that matchup and Vegeta really didn't have too many options for opponents to face him that had a similar theme.)