Master System and Game Gear
Z80 · 2026
A very early tech demo for Sega's 8-bit systems. Sonic Blast and one Master System game have narrow bring-up.
smsggrecomp is a very early tech demo for Sega's 8-bit systems.
It targets both Master System and Game Gear because the two machines are closely related.
You provide your own cartridge dump.
What runs today
Sonic the Hedgehog on Master System can play Green Hill Zone.
Sonic Blast on Game Gear reaches its title screen.
Sonic Blast running through the early Game Gear recompilation work
That is the current scope. These are narrow demos, not end-to-end releases, and they do not include major enhancements yet.
What these ports can add
- Native desktop builds.
- Gamepad-friendly runners.
- Modern window handling.
- Debugging tools for checking game behavior.
- Future enhancement work, once the base games are stronger.
What to expect
Treat this as a tech demo.
It proves the shared Z80 path can work for these systems. It does not yet guarantee complete games, polished releases, or broad compatibility.