crossover characters who can punch a mortal kombat and a street fighter character in fighting games:
Hellboy (Injustice/Brawlhalla)
The Ninja Turtles (Injustice/Brawlhalla)
John Cena, Macho Man Randy Savage, The Rock, Roman Reigns, Xavier Woods, The Undertaker (WWE Immortals/Brawlhalla)
Amazing to think that before non-Nintendo Smash characters, so much weight holding the network of roster cameos together was carried by Link as a GameCube exclusive for Soulcalibur II.