Developer: Team Shanghai Alice
Publisher: Team Shanghai Alice
AKA 秘封ナイトメアダイアリー ～ Violet Detector
Playable Characters: 1
As the sole playable character, Sumeriko is trapped within a nightmare where Gensokyo residents consistently try to attack her with a variety of spellcards where she can only defend herself from them using her phone to take photos and post on social media.
With similar gameplay to past Danmaku photography games like Shoot the Bullet you control your character to take photos of bosses and their danmaku with the addition of being able to shoot other than just taking photos to defend yourself. However Sumeriko also has the ability to use powers like teleportation to aid in her photography. Featuring nearly every Windows Era character up to Hidden Star In Four Seasons with multiple spellcards each (some from previous games.) this means some cards feature two bosses together combining their attacks. In order to unlock new bosses you have to fill the Nightmare Diary to progress further.
If you would like to support ZUN, you may buy VD on Steam here: https://store.steampowered.com/app/924650/__Violet_Detector/.
*Attached scorefile has 100% completion status, in other words access to all attacks