Day giant bat, Shiki's week, ULTIMATE.
Trying to find a Boss Noise so that I can finish day 3's requirements off.
Plus if I get all the pin drops recorded, it'll help - I'll beat boss noise bat on Hard (beat story boss on Normal then Ultimate, only to find no final gold star) and the story's one on Easy.
Boom.
So I take it that Vespertilio Canor is the aforementioned giant bat? Regarding pin drops, it drops 5000 Yen [Easy/Normal], Pteropus [Hard] and 10,000 Yen[Ultimate]; though you may have this recorded already.