In other words, IT IS THE BEST FUCKING GAME EVER MADE. You can play as any of the Robot Masters from Mega Man 1 through 6 as well as other characters like Proto Man and Bass, EVERY SINGLE ONE of the Robot Masters' signature weapons can be found as usable weapons, there over 50 maps made exclusively for the game with art that looks like it was ripped straight from an NES, and to top it off the entire thing has a single player campaign included that is based off the original games.
At its most basic level the game is Skulltag Doom deathmatch with a cool 8-bit Megaman skin, but it is so much more than that. Mega Man 8-bit Deathmatch is a standalone Doom mod running on Skulltag that is pretty much the most bad ass thing ever. In any event, I figured that since, at the very least, there seems to be no active forum topics about this game that I would take the time to educate you.
So, I'm actually really surprised to find that there is absolutely nothing about this on Giantbomb. I used the search function, and I spelled Mega Man and Deathmatch like twelve different ways. Okay first off, I know this looks like it is in the wrong forum but it really really isn't.