Sprunki began as a fan made version of Incredibox, the drag and drop music game where animated characters each perform a beat, melody or effect. It spread quickly through Scratch, YouTube and TikTok, spawning many remixes and alternate versions including Pyramixed, which reworks the cast, visuals and sounds with a darker horror inspired style. Sulfur is one of the additions players look for in that version, and clips of its loop circulate on their own because the tone stays recognisable even outside a full song mix.