Super Karate Mario
From Mario Fan Games Galaxy Wiki
The sequel to "Karate Mario" that included many more modes of play such as Bowser Seige, Fighting 8-bit Team, Master Hand battle, Break the Targets, and Home-run Contest.
The project is on hold right now, but a deluxe edition with multi-player is already in the works. In fact, the only thing left to do with the project is to program online or P2P based multi-player, but gamester still needs to learn how to do all that crap to make it work.