I believe this was some odd elaborate April Fool's Joke.
I'm not entirely sure on this one, but I think its a homebrew version of MKII. Apparently, only Sub-Zero is playable, but I don't know what moves he has in this version. Nor do I know what a GP32 is...
MK0. There's a topic on it floating arounf somewhere in General Discussion. One of our members is working on this.
Mortal Kombat Anthology. A Gamemaker game I was working on quite a while ago, but got bored with it (and ran out of programming knowledge). It was supposed to have all of the characters from MK1-DA, and take place between DA and Deception.