11:30 Top 25 Most Famous Undertale Songs 2:52 065. CORE (UNDERTALE Soundtrack) - Toby Fox 2:12 031. Waterfall (UNDERTALE Soundtrack) - Toby Fox 6:26 071. Undertale (UNDERTALE Soundtrack) - Toby Fox 1:52 069. For The Fans (UNDERTALE Soundtrack) - Toby Fox 0:25 076. Bergentrückung (UNDERTALE Soundtrack) - Toby Fox 0:30 Undertale Music is on Grimace's Playlist?