Supermodel emulates Sega's Model 3 arcade platform, allowing you to play a number of ground-breaking 3D classics on your PC. Presently, Supermodel is in a very early "alpha" stage of development, so it lacks many of the bells and whistles of more mature emulators. Carefully reading the documentation and Help page is highly advised. Nobody said making it to the catwalk was going to be easy!
The aim of the Supermodel project is to develop an emulator that is both accurate and playable. As with virtually all arcade hardware, no public documentation for the Model 3 platform exists, therefore what is known so far has been painstakingly reverse engineered from scratch. There is still plenty left to figure out and the emphasis at this early phase of development is still toward accuracy rather than speed and usability.