Call of Duty: Black Ops II was released in 2012, developed by Treyarch, and its Zombies mode built a large dedicated following through round based survival maps. The game over music became familiar through repeated runs, as players heard it after every failed attempt to survive the horde. Clips and recordings spread through YouTube gameplay videos, forums, and soundboards in the following years. Like the Roblox oof, it has become shorthand online for a clear, final defeat, which keeps it in use long after release for gaming edits and memes.