3:48 Undertale OST - Gaster's Theme? 3:23 UNDERTALE - Gaster's theme [ 8th Anniversary ] 1:48 What If Gaster's Theme Was a Full Song? 0:36 Undertale OST: Gaster's Theme 3:30 Undertale 2 OST Gaster's Theme + Darker, Darker, Yet Darker Extended mp4 5:07 ЭКСПЕРИМЕНТ НЕ БЫЛ ПРОВАЛЬНЫМ | Песня Гастера из Undertale 2:52 KillyKid - Gaster Theme Remix (Official audio) 0:35 Undertale - Gaster's Theme 3:00 Underverse OST - Rekindle [XGaster's Theme] 7:12 Undertale | W. D. Gaster Theme - Piano Cover (Sad/Dramatic) 4:25 [Undertale Remix] SharaX - Dark Darker Yet Darker 1:47 W.D. GASTER'S SHANTY 0:54 W.D. Gaster from DELTARUNE built it all from an empty room (reupload) 4:43 Glitchtale Animosity OST - W. D. Gaster fight Betty 0:24 dialtone reversed = gaster theme and more gaster connections with freedom leitmotif