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

how i picture Gaster in True Lab if he... discovered IMAGE_FRIEND in undertaleshow more

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

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

epic gaster

PHARAOH GASTER???

this vid looks like gaster getting shattered across spacetime

gaster finding the prophecy

Gaster writing the prophecy

Gaster gets checked

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

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

thanks susie gaster #DELTARUNE #susiedeltarune

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

Gaster after Entry 17:

what i think about the gaster discourse

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

lets all kiss gaster #deltarune #corestrings

featuring my buddies sonic and Susie "deltarune" Gaster