I managed to snag a copy, but it's not booting up on either converter, and I don't have an actual Master System to try it on. I read somewhere that it's either because it's an 8-meg cartridge or only compatible with PAL or Brazilian machines, but the posters on those forums weren't 100% sure and had conflicting info. Does anyone here know for sure?
EDIT: I tested it out in a Sega Game Gear 2110G using a Master Gear Converter (Model G-233), and it worked perfectly.