On a whim, I decided to look up all the different versions of Royal Blood to see what they looked like, because I used to love Gemfire on SNES and I wondered if any of them looked better. Most of the PC versions look similar, it seems, with the X68000 and PC98 versions apparently looking the best out of those, but for some reason I haven't been able to find
any images or videos of the FM-Towns version, even thumbnails! Even which I search for ロイヤルブラッド all I could find was someone selling it on yahoo japan auctions for a hefty price:
http://page2.auctions.yahoo.co.jp/jp/auction/b159817479I wish he had shown the back of the box, since maybe then I could see what it looked like! However, I'm intrigued by the fact that the game came with both a CD and a floppy disc, and the fact that the description says "withサウンドウェア 完美品 タウンズ" makes me think that maybe the CD is an enhanced soundtrack. I'm really curious what that sounds like. Maybe it's the arranged album they made for the game? In any case, this game seems to be extremely rare so I imagine the only way to find out would be to purchase it, unless someone here knows something about this.