Siliconera, in an effort to learn why Mega Man wasn't invited to the brawl, sought out UMvC3 producer
"I’m sorry, there is no Mega Man in Ultimate," Niitsuma apologized. "We had a lot of requests from fans for Mega Man or at least one of them to be in the game. Out of all of the requests we got for Capcom characters, he just didn’t enter the top part of the ranking. Unfortunately, he didn’t make the cut."