Undertale Fan - Gaster's Battle Theme
02:30
Undertale(Fanmade) - Gaster's Memories theme
04:05
Undertale OST - Gaster's Theme (Reversed)
02:02
Gaster's Theme (Uncorrupted Mix) - Undertale
02:05
Undertale OST - Entry 17 [Gaster's Theme] (Extended)
30:32
Undertale OST DJJaner - Gaster Theme (Remix(Loop))
02:37
Undertale OST - Gaster's Theme(Deeper and Anti-Nightcore)
02:52
Gaster's Theme - Undertale Remix (Nitroglitch)
05:22
Undertale OST - Gaster's Theme (SLOWED DOWN)
04:25
UNDERTALE: Halloween Hack - Gaster's Theme
04:55
UNDERTALE OST - The Great Anansi - Dark, Darker, Yet Darker (Remix of Gaster's Theme)
02:27
undertale (toby fox) - Gaster's Theme
00:34
[UnderTale AU] - Gaster's Theme [OuterTale OST]
00:58
Undertale OST - Gaster's Theme (Metal Cover)
01:23
[UNDERTALE] Dark, Darker, Yet Darker - Gaster's Pacifist Battle Theme [SPOILERS]
02:30
Undertale - NITRO remix - Beyond The Void [Gaster's Theme]
02:57
[UnderTale] - Dr Gaster - Gaster's Extended Battle Theme [Double-Dog SPOILERS] - YouTube
10:40
Undertale OST - Gaster's Theme (OST Version)
02:36
Undertale 2 - Dr. W.D. Gaster's Overworld Sprites and Theme Music Leaked!
01:39
Gaster's Theme - Undertale OST (SLOWED DOWN)
04:25
Undertale (F350 remix) - Gaster Theme
02:03
Undertale OST...? - Gaster's Theme Extended
15:42
Undertale Remix - Snowdin Shopkeep Theme (Toni Leys Remix)
02:56
Undertale Remix - Snowdin Shopkeep Theme (Toni Leys Remix) - GameChops
02:56
UnderTale DeadWorld - Dead game [Isabella's fight theme]
03:58
Undertale OST - His Theme [DiamondBlade cover]
02:05
Undertale Special Mysterious - EternalFall sans theme
05:16