Judgement Bird is an Abnormality from Lobotomy Corporation, Project Moon's 2018 management simulation game in which players oversee a facility containing dangerous, otherworldly entities. The bird is known for its long neck, pale appearance and habit of watching employees before passing judgement, and its stun effect has become a recognisable audio cue among fans. Clips from the game circulate on soundboards and in fan edits, where the short, punishing sound is reused to mark sudden failures, freezes and dramatic reveals.