Deltarune is the episodic role-playing game by Toby Fox, and its third chapter is set largely inside a strange television world run by the showman Tenna. Dark Fountains are central to the series, acting as sources of the Dark World and moments of major change, so a sound tied to one carries built-in tension for fans. As players shared Chapter 3 playthroughs, edits and lore videos, this short text sound became a shorthand for a reveal or a shift in the story. It remains popular because it is instantly recognisable to Deltarune players without needing any spoken dialogue.