3:48 Undertale OST - Gaster's Theme? 5:05 Glitchtale OST - Vantablack [Gaster's Theme] 4:43 Glitchtale Animosity OST - W. D. Gaster fight Betty 1:48 What If Gaster's Theme Was a Full Song? 6:54 Glitchtale - Ascended (#4 Ascension) EXTENDED VERSION | by amella 1:38 UTPR OST : Gaster p-1 : Darkest Hour 5:05 Glitchtale - Ascended (#1 Vain) EXTENDED VERSION | by amella 4:59 The Man Who Got Hands - DELTARUNE UST (Fan-Made W.D. Gaster Boss Theme) 8:09 YOUR FAULT (v2) | DELTARUNE Chapter 6 UST (Snowgrave Gaster Final Boss Theme) 7:07 Deltarune - Boltzmann Brain (W.D. Gaster Theme) 9:46 [Undertale] Gaster's Finale (amella Remix) - Animation [FULL VERSION] 1:10 Gaster's Theme Extended - Wonders Of Science 12:38 Glitchtale (S2) - Ascended | amella Original 2:52 KillyKid - Gaster Theme Remix (Official audio) 4:09 GASTER'S SANCTUARY 3:23 UNDERTALE - Gaster's theme [ 8th Anniversary ] 0:09 Gaster's theme in fl studio 3:30 Undertale 2 OST Gaster's Theme + Darker, Darker, Yet Darker Extended mp4 0:24 dialtone reversed = gaster theme and more gaster connections with freedom leitmotif 1:00 Why Gaster's Theme Sounds So Creepy #undertale #undertalemusic #deltarune #tobyfox 0:35 Undertale - Gaster's Theme 4:25 [Undertale Remix] SharaX - Dark Darker Yet Darker 4:00 Undertale - Gaster's Theme (Extended by AI) Reupload