It's using GML (game maker's knock-off version of C++), the same thing that Jubeh used for king of punching, I believe. Been using it for quite a few years and I'm still constantly reffing tutorials, through. Hell, I only managed to make a PS1 grade kinda 3D thing in the middle of last year.
Also, for the record, I think that you are a better writer than me. >_>
Basically kinda faffing about now, through, really, so if people have ideas, feel free to drop me a line. An MT game team could be kind of a cool idea.