In the, now 40+ year, history of the original Nintendo Entertainment System and the modern video game, there are bound to be quite a few hidden gems ready to be discovered or reappraised by modern gamers. Many of these are games that, for one reason or another, never made it over to America from Japan. But unlike most of those games, ‘The Mysterious Murasame Castle’ wasn’t even readily available on an official Japanese cartridge, ready to be played on consoles with Japanese game cart adaptors or region unlocked clone consoles.