Shadow Dancer doesn't work on RetroArch for either Arcade (MAME) or SMS (Genesis Plus GX).
I've obtained ROMs from 2 different sources for the SMS, which work fine on Dega and Kega Fusion, but RetroArch doesn't see them (or the Arcade version) as Content - even when I use RetroArch Playlist Buddy. And when I pre-load the Cores, they don't recognize them (when loading from a playlist) - the screen goes dark and the game doesn't start.
Can anyone help?