Game Gear PC Ports
Game Gear PC ports run SEGA Game Gear games as native programs, with no emulator. Many add things the original hardware couldn’t do, such as widescreen, high frame rates and higher resolutions.
Decompilation projects rewrite the game’s code by hand until it compiles back to the original game, which takes years but gives code that is easy to change. Recompilation projects use a tool that translates the game’s machine code automatically, which is much faster. Some recompilation downloads are kits that build the game from your cartridge the first time you run them.
None of these downloads include the game itself. Each one needs the game dumped from your own cartridge, and some also need a BIOS dumped from your own console.
Sonic Blast GG Recomp is an early static recompilation of the Game Gear Sonic Blast for Windows by mstan, started from the command line.