Bonetrousle was composed by Toby Fox for Undertale, released in 2015, as the battle theme for the skeleton Papyrus during his boss encounter. The track became one of the game's most shared songs thanks to its cheerful, theatrical energy. Edited versions later circulated online as listening challenges and jokes, including this take credited to Pixelator where beats two and four are swapped. Fans use the edit to test how well they know the original and to give familiar gameplay footage an unsettling comic twist.