Undertale Yellow is a fan-made prequel to Toby Fox's Undertale, released in 2023 after years in development. It follows Clover, a human whose yellow soul represents Justice, and expands the shooting gameplay first introduced by the yellow soul mode in the original game. Clips of its battle sounds circulate among fans making tributes, recreations and memes, and this single shot has become a reusable effect for anyone who wants the game's distinctive combat feel without recording gameplay themselves.