English Title: BLOOD+ One Night KissWeird adventure/action hybrid not entirely dissimilar to GHM's later No More Heroes. Side-story to an anime I've never seen. The game haphazardly switches between two protagonists -- a schoolgirl with a katana, and a detective dude with a shotgun.
Japanese Title: ブラッドプラス ワンナイトキス
Developer: Grasshopper Manufacture
Genre: Horror / Adventure
Released: Aug. 31, 2006
Product Codes: SLPS-25677 / JAN 4582224491223
I haven't played much of this; the visual style which mixes cel-shaded 3D and pixel graphics is neat and very Suda51, but I've heard the whole thing falls apart in the action segments as they're not very well-implemented. Among GHM's most obscure releases, and their only PS2 title to never get an English release (Flower Sun and Rain got a worldwide release on the DS).