RetroArch - Genesis Plus GX

Genesis Plus GX began as a homebrew port of the Genesis Plus emulator for a hacked console before being ported to libretro. With a focus on speed, accuracy and portability, Genesis Plus GX now appears on a variety of platforms and frontends, and is known as one of the most capable and compatible emulators for the consoles it covers, with support for both cartridge and CD-ROM games. It also works well with many of RetroArch's advanced features, such as real-time rewind, runahead latency reduction, cheats and RetroAchievements.