A-90 is one of the hostile entities in Doors, the Roblox horror game in which players move through a series of increasingly dangerous rooms while avoiding monsters. A-90 is encountered in the game's endless Rooms area, where it appears suddenly and punishes players who keep moving after it shows up, making its scream one of the game's most recognisable jump scares. Clips of the encounter were shared widely on YouTube, TikTok and Roblox soundboards, and editors now reuse the sound on its own as a generic shock cue for horror edits, pranks and reaction videos.