* CrackPairing: Some fan pics in both Website/{{Pixiv}} and Website/DeviantArt paired the Protagonist, with, of all people, the Archangel.
* FanNickname: The protagonist is usually referred to as Dextera XII. Also, Koriel XIII
* GameBreaker: It's a relatively easy roguelike, and the fact that you can save items between runs makes a few possible.
** With an Addition Box and two split brands, you can duplicate an infinite number of any item in the game.
** Vampire Swords will randomly gain a weapon level and heal you. Once you find one, you won't need any other weapon.
* NightmareFuel:
** The Neuro Tower in the original game.
** The Horned Girl's lack of thoughts or personality, Longneck's creepy masochist attitude, and the fact that you're the only one who looks and acts like an actual human being in the game.
** [[spoiler: The boxbearer's breakdown, he and the revelation that he killed his own daughter (The Bagged One) in a fit of madness. He become so distraught he deluded himself into thinking his empty box contained his daughter's soul!]]
*** Once you actually see what the Meta-beings look like, it will frighten you to think they were once human! Even worse is when you read the Meta-beings' baroques, which are stories of how they became the way they were
** The moment that you realize that the Horned Girl [[spoiler:isn't speaking what she's thinking, but rather what ''you're'' thinking]].
** [[spoiler:When characters start burying themselves.]]
*** The ''real'' way Dextera [[{{GameplayAndStorySegregation}} obtains the Baroques of the main characters]]. [[spoiler: He strangles them to death.]]
*** Many meta beings are creepy, but [[http://www.atlus.com/baroque/ps2/ikei/ikei2/ikei16.htm Bubugel]] and [[http://www.atlus.com/baroque/ps2/ikei/ikei2/ikei06.htm Nicl & Nicr]] (the worst case of LoveHurts) made the rest rather tame.
*** Being a confined, dungeon-like space with all these Metabeings, and not knowing what's in store when you advance to the next level... *shudder*
*** Advanced Angel. . . [[spoiler:looks dead when you find him in the original.]] YYMV if it's better or worse that he [[spoiler:is both awake and alive in the remake.]]
* ThatOneBoss: The only four bosses aren't even required to beat the game, technically. And boy are they HARD. Even worse, after you beat them [[spoiler: in the Neuro Tower, they become normal enemies in the Coffin Guy's bonus dungeons.]]
* UncannyValley: Most of the creatures in the game fall under this, to some. The remake making everything slightly more cartoonish may make it even farther.
** Its kinda strange how some characters like the Protagonist, Archangel and the Absolute God are drawn in typical anime style yet others like the Coffin man are drawn in a more realistic manner.