Murder Mystery 2 is a popular Roblox social deduction game in which one player is secretly assigned as the murderer, while others try to survive or identify them. Audio linked to the murderer role has become a shorthand for danger in gameplay videos, edits and memes shared by the Roblox community. Creators reuse it outside full matches too, because even viewers who have never played MM2 recognise the tense, secret-killer setup. Its continued use comes from that instant recognition, the game's large and long-running player base, and how easily the short clip fits a reveal, chase or plot twist.