Perhaps one of the most well-known doujin fighters made using the free 2D Fighter Maker engine, Super Cosplay War Ultra
is a collection of popular Japanese manga and anime culture all compiled into a comprehensive versus battle game.
Much like Capcom's Puzzle Fighter, your character changes to an appropriate costume when a move is successfully executed, then switches back quickly afterwards. A complete set of moves list can be downloaded from the web site.
Use the password 'http://www.fkdigital.net' to unzip the file.
Name: Super Cosplay War Ultra
Developer: FK Digital