Doom is there regardless of the game now. That's Matt's character in these things.Apparently Doctor Doom is Max's best friend now.
It's weird that Max used Doom in both the Smash and KI "Assist Me!" despite his lack of inclusion in said fighting games. I loved Max's version of Victor von Doom in the MvC3 "Assist Me!", but he's starting to become overused and out of place.
Oh, who am I kidding? Give that lovable dictator some more yogurt!