Take a look at our attempts at porting over some TG/DUO games to the PC using the easy to use game making app GameMaker.
If you know the C programming language and want to program your own games for the TG/PCE, look no further than HuCengine to start you on your way!
This was supposed to be the first emulator for the PC-FX, but has been discontinued. The section is still available to see the various aspects of the project.