gaster's theme

Greg's Theme  

Gaster's Theme Remix 

Gaster's Theme (Remix) (Remix) 

Gaster's Battle Theme [Reverse] 

Gaster's Theme 

Gaster's Theme 

StarTale : Gaster's Theme 

Gaster's Theme - Megalovania 

Gaster's Theme (OST Version) 

Gaster's Theme (Reversed) 

Gaster's theme 

Vantablack [Gaster's Theme] 

Beyond the Void [Gaster's Theme] 

Gaster's Theme Extended 

Gaster's Theme  

Gaster's Theme (Kulu Dubstep Remix) 

???(Gaster's Fight theme) 

Gaster's Theme [OuterTale OST] 

Gaster's Theme (Hellkite Remix) 

Gaster's Theme 

Gaster's Theme [Remix] 

Gaster's Theme 

Gaster's Battle Theme 

Undertale - Gaster's Theme Remix 

Gaster's Battle Theme 

Gaster's Theme (Remix) (Remix) 

Gaster's Theme 

Glitchtale OST - Vantablack [Gaster's Theme] 

Vantablack [Gaster's Theme] 

Gaster's Theme 

Gaster's Theme 

Gaster's Theme Undertale 

Gaster's - Theme 

Vantablack [Gaster's Theme] 

Gaster's Theme 

Gaster's Theme (bootleg remix) 

Gaster's Theme 2 

Gaster's Theme (Remix) (Remix) 

Gaster's Theme (Remix) (Remix) 

Gaster's Memories theme 

Gaster's Theme (Remix) (Remix) 

UNDERTALE - Gaster`s Theme 【Intense Symphonic Metal Cover】 

Gaster's Theme 

Undertale OST - Gaster's Theme? 

Gaster's Theme [Electro Swing Remix] 

Gaster's Theme 

Gaster's Theme 

Gaster's Theme (Reverse) 

Gaster's Theme (From "Undertale") 

Gaster's Theme Remix