https://page.auctions.yahoo.co.jp/jp/auction/q254242031
Only known copy to exist. The normal released versions are on SNES and X68000.
This auction has been sitting there for a few months now. Does anyone think this is something worth pursuing? I wouldn't pay the full asking price for it but if there was enough interest maybe we could get some sort of crowdfunding thing going and try to negotiate the price down with the seller.