System name:
genesis

Full system name:
Sega Genesis

Supported file extensions:
.32x .32X .68k .68K .bin .BIN .bms .BMS .chd .CHD .cue .CUE .gen .GEN .gg .GG .iso .ISO .m3u .M3U .md .MD .mdx .MDX .sg .SG .sgd .SGD .smd .SMD .sms .SMS .7z .7Z .zip .ZIP

Launch command:
%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\genesis_plus_gx_libretro.dll %ROM%

Alternative launch commands:
%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\genesis_plus_gx_wide_libretro.dll %ROM%
%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\picodrive_libretro.dll %ROM%
%EMULATOR_RETROARCH% -L %CORE_RETROARCH%\blastem_libretro.dll %ROM%
%EMULATOR_MEDNAFEN% -force_module md %ROM%
%EMULATOR_ARES% --fullscreen --system "Mega Drive" %ROM%
%EMULATOR_JGENESIS% --file-path %ROM%

Platform (for scraping):
genesis

Theme folder:
genesis