![Undertale - Dark, Darker, Yet Darker - Gaster's Pacifist Battle Theme (Advanced Piano Cover) - YouTube Undertale - Dark, Darker, Yet Darker - Gaster's Pacifist Battle Theme (Advanced Piano Cover) - YouTube](https://i.ytimg.com/vi/6PZwMMWgaZE/maxresdefault.jpg)
Undertale - Dark, Darker, Yet Darker - Gaster's Pacifist Battle Theme (Advanced Piano Cover) - YouTube
![The ENTIRE Undertale + Deltarune OSTs in piano sheet music! (Mad Mew Mew, Megalo Strike Back, and Gaster's theme included)(Credit to the musescore composers who made the arrangements!) : r/Undertale The ENTIRE Undertale + Deltarune OSTs in piano sheet music! (Mad Mew Mew, Megalo Strike Back, and Gaster's theme included)(Credit to the musescore composers who made the arrangements!) : r/Undertale](https://preview.redd.it/9u4alob3qd081.jpg?width=640&crop=smart&auto=webp&s=ad49b505e976b1e4ba53accb4175952fc121c683)
The ENTIRE Undertale + Deltarune OSTs in piano sheet music! (Mad Mew Mew, Megalo Strike Back, and Gaster's theme included)(Credit to the musescore composers who made the arrangements!) : r/Undertale
![Gaster's Theme Sheet music for Piano, Contrabass, Crash, Violin & more instruments (Mixed Ensemble) | Musescore.com Gaster's Theme Sheet music for Piano, Contrabass, Crash, Violin & more instruments (Mixed Ensemble) | Musescore.com](https://cdn.ustatik.com/musescore/scoredata/g/ec0b658b618d23c48a77edd600c49b50e5c52bef/score_0.png?no-cache=1584545673)
Gaster's Theme Sheet music for Piano, Contrabass, Crash, Violin & more instruments (Mixed Ensemble) | Musescore.com
![The ENTIRE Undertale + Deltarune OSTs in piano sheet music! (Mad Mew Mew, Megalo Strike Back, and Gaster's theme included)(Credit to the musescore composers who made the arrangements!) : r/Undertale The ENTIRE Undertale + Deltarune OSTs in piano sheet music! (Mad Mew Mew, Megalo Strike Back, and Gaster's theme included)(Credit to the musescore composers who made the arrangements!) : r/Undertale](https://preview.redd.it/rica4os4qd081.jpg?width=640&crop=smart&auto=webp&s=f43a1eeecf3937e4f12ec1958cc0c0294b1204de)