picodrive is now available for the wii,wiiu and gamecube as part of the retroarch frontend.
picodrive plays sega master system/sega megadrive/sega cd and 32X.
the best version is the wii version as the wiiu has some sound stutter and can slow down depending on the game you are playing.
but the wii version plays really well.
wii version of picodrive to try.
link for wii version
[code]https://github.com/libretro/picodrive/files/6351669/retroarch_wii.dol.gz[/code]