Undertale Gaster Song Remix

KillyKid - Gaster Theme Remix (Official audio)

[Undertale Remix] SharaX - Dark Darker Yet Darker

SharaX Official

SayMaxWell - Gaster's Theme [Remix]

Undertale - Gaster's Theme Remix [Kamex]

[Undertale] Gaster's Theme Remix - W. D. Gaster's Megalovania (amella Remix)

[Undertale] ENTRY NUMBER SEVENTEEN (W. D. Gaster battle theme)

Chasing Fireflies

Animated [Undertale Remix] SharaX - Dark Darker Yet Darker

Undertale - Gaster's Theme Remix 2

Ghost Fight (Remix) - Undertale [Anniversary Special]

Gaster's theme - Walde remix

[Undertale] Gaster's Finale (amella Remix) - Animation [W/O INTRO]

Undertale - Gaster's Theme [Electro Swing Remix]

The Musical Ghost

[Undertale Remix] SharaX - Dark Darker Yet Darker 1 hour | One Hour of...

OHO I OneHourOf

[Undertale Remix] SharaX - Dark Darker Yet Monster

SharaX Official

Dark, Darker, Yet Darker (Remix of Gaster's Theme)

The Great Anansi

Entry Number 17 - Dark Darker Yet Darker

Man on the Internet

Dark, Darker, Yet Darker (Gaster theme remix) extended