Or
Alternatively there is Mighty No. 9 from the creator of megaman, a sort of megaman-esque multiplayer co-op. And most importantly, Linux client =)
http://store.steampowered.com/app/314710/
Capcom has announced it will release a collection of the original six Mega-Man games as a single title for the PS4, Xbox One, and PC platforms. The Mega Man Legacy Collection will bundle the original half-dozen NES titles from the series with online leader boards, mini-games, and a digital "museum" of artwork gathered from the …