I played this. A very small and simple fangame, reminds me of Ring Man in the Castle.

There's a few reused assets but the music is all original, which was really nice. Weapons, stages and bosses are all well designed, even if the stages themselves don't have a lot of character.

A decent, linear Mega Man experience. It's a shame that you can't replay levels. I missed 1 weapon and I can't return to pick it up