According to OP aka Cooper himself:
a retake/remaster of "Zander's Mugen V4.5" by Alexander Cooper 19 and the ZMR Team. is made to fulfill the purpose of a compilation + fullgame hybrid designed more like a commercial fighting game with universal controls that's easy to learn, an entirely original soundtrack, unique boss fights and a bunch of new content with tons of polish and love on all fronts while not taking itself to seriously at the same time. is still in active development.

Playlist / Preview: https://www.youtube.com/playlist?list=PL4HoKqSvF6BrkiWpmgpOCFK_9pYQqxfPK