Hifuu Nightmare Diary: Violet Detector. cover
FranchiseTouhou ProjectSeriesTouhou Project

Hifuu Nightmare Diary: Violet Detector.

Be the first to rate
First release
Aug 10, 2018
Genres
Indie, Shooter, Arcade · Action, Fantasy
Platforms
PC (Microsoft Windows)

Violet Detector, like its predecessors Shoot the Bullet, Double Spoiler and Impossible Spell Card, is a collection of many individual danmaku patterns that the player can choose from at their leisure. In addition to the usual mechanic of taking photographs that clear enemy bullets, Sumireko has several psychic superpowers at her disposal, such as teleportation. The game features all of the characters who debuted in Legacy of Lunatic Kingdom and Hidden Star in Four Seasons, plus Reimu, Marisa, and most of the final and EX bosses from previous games.

Also known as TH16.5, VD, Touhou 16.5, Violet Detector
… See more, th165.exe, 秘封ナイトメアダイアリー, Hifuu Nightmare Diary

Attributes

No Attributes added.

Details

Storyline, release dates, time to beat, age ratings, modes, links, keywords

Storyline
Sumireko Usami, psychic teenager and frequent visitor to Gensoukyou, finds herself trapped in a nightmare wherein Gensoukyou's residents are relentlessly attacking her with danmaku. A frustrated Sumireko decides to make the best of the situation by photographing the danmaku patterns to share on social media, and after doing so, finds that she's been freed from the dream. Three long weeks of danmaku nightmares follow...Read more

Sumireko Usami, psychic teenager and frequent visitor to Gensoukyou, finds herself trapped in a nightmare wherein Gensoukyou's residents are relentlessly attacking her with danmaku. A frustrated Sumireko decides to make the best of the situation by photographing the danmaku patterns to share on social media, and after doing so, finds that she's been freed from the dream. Three long weeks of danmaku nightmares follow...

Release dates
PC (Microsoft Windows)
Aug 10, 2018
PC (Microsoft Windows)
Sep 05, 2018
PC (Microsoft Windows)
May 31, 2019
Game modes
Single player
Perspective
Bird view / Isometric
Keywords
ghosts, anime, casual, shoot 'em up, vampire
… All 53, magic, 2d, shooting, girls, doctor, rabbit, difficult, bullet hell, female protagonist, fairy, nightmare, dracula, time limit, princess, high school, japan, camera, level selection, high score, dreams, youkai, manic shooter, great soundtrack, boss fight, timer, countdown timer, bullet, human, shinto, phoenix, phantom, touhou project, bunny, conversation, bossfight, nuclear, faith, highscore, magician, third eye, half-human, doujin game, bosses, boss rush, danmaku, bullet grazing, rabbits, social media
How it playsMediaCommunityBehind the gameRelated

How it plays

Languages

  • 日本語interface, subtitles
IGDB · recorded 1 Nov 2026

Language data: IGDB · recorded 1 Nov 2026