CPU CO-OP in Aventers United Battle Force

Mega Man X joins the party

Reinhart Unleashed: The Sorcerer's Path | Pocket Dimensional Clash 3 (OpenBOR)

Beast and Iceman Fight Spider-Man Villain Trapster

X-Men Team Up: Colossus and Iceman CPU Co-OP against Anaconda

I think I already saw this somewhere...

Mega Man X joins this crazy crossover with Sonic, Castlevania, Castle of Illusion, Dc Comics and more!

Power Stone Edward Falcon in all bonus stages

Mega Man and all bonus stages - Mega Man Robot Master Mayhem fan game

Here comes the Dragonzord!