Even if we could come up with an explanation to Megaman.EXE in Mario's, Sonic's, or Kirby's world, there's still the problem of sprites. I could maybe revisit this if I had custom sprites in X, Zero, ZX style, or heck, even MM 7 or 8 style. Even then, I'd rather have Starforce Mega Man.
I also want to say the version of Megaman will affect what which villains will play a role in this comic.
Classic: In the currently likely scenario we see Mega and Proto, Dr Willy will steal Mega's blueprints and build a replica that can control space, appropriately named Space Man. Of course Space Man is going to be a recolor of Mega Man. I came up with this idea when I wondered "how can I involve Mega Man like my original crossover idea?" I'd like to think I can do better than a recolor, but I can only do better
X: Now who would the villains from X be? No OCs this time, it's Weil and Omega. Okay, fine, they're from Zero, but I figured it's better than letting Sigma potentially hijack my villain. WIth no votes, however, there is little chance they will even appear to begin with. THe idea for this one stems from Omega's appearance in MMZ3. I remember something about Omega being powerful enough to affect reality itself, or something along those lines. When I thought about it, I decided Omega ending up in this crossover could be a possibility.
ZX: Who will get involved this era? For those of you who didn't catch the secret ending of Advent, it's
with a bonus OC named Ogame, a crazy Mega Man that will give everyone a hard time. In fact, almost as hard of time as the main villain. Why that would be is actually hidden in this post, but no guessing! I don't want any spoilers about him. Not only will we see a surplus of heroes from ZX, but we'll see a surplus of villains too. There's still the chosen ones for Models H,P,F, and L to contend with after all.