Dry Docking: You'd think that an entire cast of single hot waitresses would be a shipper's dream come true. Yet, the only known fan pairing is Tamao/Yuka, which is popular in Japan. Otherwise, shipping is virtually nonexistent among the fandom.
Ensemble Darkhorse: False Yuka has quite a presence in fan material. She was even popular enough to return in one of the official side story novels.
Even Better Sequel: The Advanced V.G. games are considered to be superior to the original series of H-Games. In terms of the Advanced series itself, Advanced V.G. 2 is held in high regard and is usually considered one of the original PlayStation's most underrated fighters.
Fanon Discontinuity: VG Custom. Yet another remake of the original game, but this time using recycled assets from Advanced V.G. 2 and re inserting the H-scenes (recycled from one of the games in the original series). It's considered pretty bad, not just because of it being a blatant cash grab release, but because it was also quite buggy. So much that it's nigh impossible to play properly on more modern systems as attempting to adds more bugs (which include screwed up palettes and messed up controls).
Jun was a former Olympic wrestler, who was disgraced after injuring her opponent unnecessarily. Which resulted in her being banned from future entry and earned her the nickname "Bone Crusher". It remains a sore spot and reminding her of it could get you hurt.