Skeleton Growlspeakers are noise makers in the Maelstrom Quarry on Crux Prime. If left alone, they play a deep, rythmic drumbeat which encourages the Skeleton Miners to work. When a Growlspeaker is smashed, a 12 Imagination gramophone Quick Build appears. The fully constructed gramophone plays ragtime music and mesmerizes all Skeletons within a short range, causing them to begin dancing. While dancing, Skeletons are unable to use their normal attacks, but can still use Spinjitzu.