TwoMbit is a cycle-accurate emulator for Sega's 8-bit game consoles, the Master System, Game Gear, and SG-1000.
- cross-platform emulation library
- you can emulate a sms1 or sms2 unit. Like the real system, not all games run on both revisions correctly.
- combine cheats with savestates.
- input: lightphaser, sportspad, paddle, terebi oekaki
- bios load
- ntsc filter
- FM sound