The Cacodemon first appeared as an enemy in Doom, the 1993 first-person shooter from id Software, where its floating red form and gaping mouth made it one of the game's most recognisable monsters. Its distinctive growl became part of Doom's sound design and has been reused across sequels, remakes and fan projects ever since. On soundboards and in short-form videos, the brief spotting call now works as an enemy spotted cue, shorthand for danger, discovery and comic menace, keeping the classic demon instantly recognisable to new audiences.