* ContinuityNod: Several to ''VideoGame/{{Drakengard}}'', such as the "Red Dragon" that was transported to their world being [[spoiler:Angelus]].
* CreatorKiller: Cavia disbanded a few months after ''Nier'' bombed at retail.
* DuelingGames: ''Nier'' was published by Square Enix at roughly the same time as their post-apocalypse epic fantasy, ''VideoGame/FinalFantasyXIII''.
* HeyItsThatVoice: ''Gestalt'' might as well be called ''Darker VideoGame/TalesOfVesperia''. Devola/Popola being Estelle, Kaine being Gauche, Nier being Duke, and Emil being Karol, oh, and Weiss is Cumore. Another way to look at it: [[VideoGame/TalesOfTheAbyss Largo (Nier) and Dist (Weiss) having a hilarious running commentary.]]
** Oh dear God, [[VideoGame/DynastyWarriors Lu Bu]] is a PapaWolf, with a [[VideoGame/BlazBlue GIGANTIC TAGER]]!
** Grimoire Noir is voiced by Creator/FumihikoTachiki, better known as [[Manga/{{Bleach}} Kenpachi]].
*** In the English dub, he's voiced by Creator/DCDouglas, who's known primarily for [[Franchise/ResidentEvil Wesker.]]
** Yonah is [[VideoGame/TheWorldEndsWithYou Shiki Misaki]].
** Kaine cusses just about as much as a [[VideoGame/SaintsRowTheThird Saint.]]
** [[Main/InsistentTerminology Grimoire Weiss]] apparently became a [[Manga/{{Bleach}} white haired Shinigami Captain]] after his [[spoiler: HeroicSacrifice]].
* TrollingCreator: It's a Cavia game. What do you expect?
* WordOfGay: The creators confirmed that Emil is in love with Nier during interviews. When asked if it might just be platonic, they outright insisted he's gay.
* WordOfGod: According to Yoko Taro, the game's story inspired by 9/11.
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