If you go even farther Back to the Future and The Venture Bros are canon to Street Fighter
BttF to Transformers via a comic series that ended last week, Transformers to Metal Gear/Castlevania from Japanese Smash clone DreamMix TV World Fighters. Metal Gear/Castlevania to Street Fighter via Smash (obviously), Street Fighter to Marvel via MvC, Marvel to DC via various comics crossovers, DC to Scooby-Doo via that one episode of Scooby-Doo with Adam West batman, Scooby-Doo to Jonny Quest via a couple of episodes of Mystery Inc, Jonny Quest to Venture Bros via Jonny and Race Bannon appearing in that show with their actual names in earlier seasons