Deltarune is Toby Fox's follow-up to Undertale, an indie role-playing game whose turn-based battles use short, punchy hit sounds whenever a party member takes damage. This clip is a muffled edit of that familiar impact, the kind of altered game audio that circulates on soundboards and in fan edits rather than appearing in the game itself in this form. Its appeal comes from recognition: players instantly know the Deltarune battle context, so softening the hit turns a tense moment into a low-stakes joke that still reads clearly in short videos.