Myloch's most wanted (May 2020)
Any help/suggestion well accepted
amaranth kh remix (アマランス KH リミックス)
BombJack (ボンジャック) (Mindware)
Future Zero (フューチャーゼロ) (Osis)
Mahjong mania era Young Gals after school ed. (麻雀狂時代 コギャル放課後編)
princess maker pocket daisakusen (プリンセスメーカーポケット大作戦) (cyberfront)
Star Arthur legend trilogy (レジェンド・オブ・スターアーサー・トリロジー) (bothtec)
どこがちがうの DELUXE (over rise)
...and now we are coming into the vague territory:
Two games that seem to be F1 circus 3 and F1 circus special are in a nihon bussan flyer however I found nothing more about those pc ports, maybe too rare, limited production or never released!
and I immediately ordered it! I've been searching for this b*tch for such a long time: I asked here and there in various forums and websites and everyone didn't know it or they said "nah, it was cancelled". This is by far my most exciting recent discovery: yeah I know the "game is available for playstation blah blah" argument... shut up I'm a collector of pc games men! 
I suppose it has been released in really low production quantity during the same time-frame they released pc genso suikoden, another rare pc version and then Konami (most probably) cancelled the release of pc game "midnight run". This was listed for some time in some japanese webpages like 