Kega Fusion is an emulator of old Sega consoles. The result of many years of development, it supports SG1000, SC3000, Master System, Game Gear, Genesis / Megadrive, SegaCD / MegaCD and 32X systems, as long as you have the correct ROM image file.
As emulators go, Kega Fusion is an impressive one. It's lightweight and really easy to use. ROM images can just be dragged over the interface to start immediately, and games run really smoothly. While it won't win any awards for attractiveness, the standard Windows interface makes it relatively user friendly.
Its options allow you to set your controls for each of the console systems, and there are plenty of video and sound options. Kega Fusion even has optional 'scanlines' for that true bedroom TV effect. It is important to stress that Kega Fusion should only be used with Roms you own, and not copied files.
Kega Fusion is a stable and easy to use Sega emulator that allows you to easily run classic games from the now defunct console systems.