Me and my friend Nights Shadow were recently discussing the metroid prime games, how they took a great sidescrolling platformer and turned it into an fps almost flawlessly. Noting our own nostalgic love for the NES megaman games, we began to talk about how awesome a Megaman FPS might be. For one, megaman's buster cannon functions very similarly to Samus's charged beam cannon. I for one would absolutely love to see the original NES megaman series faithfully recreated in a new old-school that pays tribute to the original, but with the twist that fps gameplay would bring.
Enough would remain to make the game a spiritual remake, but enough would change to make it more than just a metroid prime mod of sorts with megaman levels. Redone representations of the original levels, remixed music, all that jazz.
Well look what I found. Apparently, it might be happening on the Wii.
google megaman fps for more results.