Gaster theories be like [#undertale #sans #gaster]

gaster showing trouble dingle to sans and papyrus

Welcome to the FIRST EVER Gaster Fridays! Every week... we Gaster it up!! YEAH!!!! YES!!!!!!! Since this is the first one, the first Gaster Friday, we found Gaster's commercial! Gasters? Let us know how you think. #UNDERTALE #DELTARUNEshow more

Gaster tries to cheer up Vessel #DELTARUNE #GASTER #vessel

epic gaster

what sans would post after gaster shows him his... sick sound test room beatsshow more

this vid looks like gaster getting shattered across spacetime

Gaster gets checked

Gaster writing the prophecy

thanks susie gaster #DELTARUNE #susiedeltarune

"HOW DID I GET THIS NUMBER...? I JUST DIALED... EVERY NUMBER SEQUENTIALLY UNTIL I GOT YOURS!!! (EVEN THE IMAGINARY ONES!)" #Gaster #Papyrus #Undertaleshow more

Gaster after Entry 17:

Shalalalala . . Btw I didn't put Cross and... Ink as brothers, I only put Gaster as a person who has power over them and they must obey his orders. #inksans #crosssans #crink #epicsans #EpicCross #sans #underverse #undertale #digitalartshow more

Gaster when you beat deltarune after doing snowgrave: GOOD... JOB. Gaster when you beat deltarune after collecting a single egg:show more

GASTER and the Soul #DELTARUNE

what i think about the gaster discourse

Since Gaster created Sound Test, I like to think... he also created Control Testshow more

featuring my buddies sonic and Susie "deltarune" Gaster

gaster testing dess’s corpse for his knight prototype

Why does this video have the Gaster motif

gaster noticing the second soul in my game