This is entirely disorganised but here are an assortment of Mega Man characters, from a variety of sources, some well known, others not so much...

Some of these are used in fangames, such as Mega Man Revolution Remix, MaGMML3, and some were indeed made for Quint's Revenge 2.

Therefore a variety of them are sheeted and animated, versus not. I should probably upload those sheets at some point.

https://www.deviantart.com/ace-spark/art/Assorted-Mega-Man-Characters-NES-Styled-869230580