* AlasPoorVillain: Ushikawa is an unlikable character who works for the BigBad, but it's hard not to feel pity for him as he [[spoiler: thinks of his daughters while being suffocated to death by Tamaru]].
* FandomBerserkButton:
** The title has been mispronounced as "Q-Teen Eighty Four".
** As well as "IQ Eighty Four".
* LikeYouWouldReallyDoIt: Book 2 ends with [[spoiler:Aomame sticking a loaded gun in her mouth. Less blatant in the original since the three books were published separately, but played straight in the English release.]]
* LesYay
* ValuesDissonance: On gun control. To elaborate, Tamaru getting a handgun for Aomame is a [[SeriousBusiness big deal and quite risky]] and it shows how much they trust each other, because she could get arrested for owning a gun and he for providing it to her. This might seem very odd to American readers, who live in a country that has some of the most lax gun laws in the world while Japan has the very strictest gun laws in the world.