This is really cool. I had no idea anyone had any progress with these kits. Is it easy to work with or do you need a lot of programming know-how. NEC originally talked about this being very user-friendly. SInce I have never actually used it, I can't be sure. I read once on a Japanese site that all FX games work perfectly so I think it's safe for us to accept that.
In any case, the whole idea f being able to play the FX on a PC was a wonderful idea (though I thnik Matsushita was the first to do it with the 3DO). The FX was designed to be a console sister to the PC-98 computers after all. I wonder if the PC-FXGA could help us on the emulation front in any way?
NEC was considering a 3d processer add-on which obviously never came out. They probably realized too late that the world was more eager to jump to 3d than it was to remain 2d. What intersts me is that the FX much have some extra horsepower under the hood ready to receive any such add-on. Could this 3d chip in the FXGA be 'plugged' into an FX?
It's not particularly difficult to use, if you know DOS commands it's a breeze, the hardest thing is to install everything properly with no IRQ conflicts...
From what I understand there are no reasons why the PC-FXGA couldn't run all the PC-FX games no incompability has been reported yet. It's a PC-FX with the missing 3D chip...
I don't think one could connect directly the 3D chip on a stock PC-FX, the bios on the PCF-XGA is different but I guess with sufficient knowledge and hardware documentation it could be done using what's in a PC-FXGA but it would be a lot of work for a few games and demos. Emulation is the most likely option to play these I'm afraid. Note that the PC-FX is able to boot and play PC-FXGA games but you only get sound, no image.
With regards to Emulation the PC-FXGA bios has been dumped a long time by the FXer team and is widely available and Magic Engine is really solid and cheap. I guess the SDK could help developers in developing emulators.