34 Votes in Poll
Editor's Note: These are the 3 main hacks I could think of. If anyone knows anymore, feel free to leave your vote here!
As I see it, Minus Infinity does so much to change MegaMan 4 that it feels like a brand new experience. I consider it not just the best MegaMan 4 mod but one of the best MegaMan mods in general.
What do you think?