Games like Hifuu Nightmare Diary: Violet Detector.

If you finished Hifuu Nightmare Diary: Violet Detector., the closest matches are Touhou Luna Nights, Touhou Hyouibana: Antinomy of Common Flowers, Touhou Koumakyou: The Embodiment of Scarlet Devil, Touhou Eiyashou: Imperishable Night and Touhou Kaeizuka: Phantasmagoria of Flower View. All 8 share its arcade genre and are ranked by how closely their themes and modes overlap.