This sound comes from Touhou Project, the long-running Japanese bullet hell series created by ZUN and developed by Team Shanghai Alice, in which players weave through dense bullet patterns while collecting falling point and power items. A mass collection chime of this kind signals that many items have been gathered at once, usually after clearing enemies or moving to the top of the screen. Clips from the series have circulated for years in gameplay videos, fan edits and soundboards, and this tiny chime endures because it instantly reads as a clean, satisfying reward in any fast-paced video.