ヒステリックナイトガール (Hysteric Night Girl) is a track by Japanese electronic producer PSYQUI, featuring vocals by Such. It first appeared on PSYQUI's 2018 album STYLEY!, which also includes an instrumental version of the song. The track later entered SEGA's rhythm game ecosystem, joining maimai DX UNiVERSE in January 2022 under the GAME & VARIETY category and オンゲキ bright MEMORY at that game's launch. The song's lyrics paint a vivid portrait of a volatile late-night argument between two people, the "hysteric night" of the title unfolding through traded insults, sarcastic dismissals, and raw emotional confessions. Lines like 「マジでアタシは何で泣いてんの?」 ("Seriously, why am I crying?") capture the disorienting push-and-pull of the exchange. Musically, PSYQUI pairs this lyrical tension with a polished electronic pop production at 126 BPM, balancing a driving four-on-the-floor beat against bright synth melodies and a breakdown that mirrors the narrator's exasperation. In maimai, the song's MASTER chart, designed by シチミヘルツ (Shichimi hertz), debuted at level 12+ during UNiVERSE and was later re-evaluated to level 13 starting with PRiSM+. The EXPERT chart, designed by 翠楼屋 (Suirouya), carries a 9+ rating. The jacket artwork depicts a woman with a small lollipop (ペロペロ) drawn on her left shoulder, a subtle visual quirk that has drawn occasional notice from players.