Gaster Blaster!Sans is a Sans who was taken over by Gaster Blasters and turned into this.

About this AU and MoreEdit

The universe is based around the concept of Sans’ gaster blasters taking him over, changing him into a gaster blaster monster. The AU has a lot of artwork, especially since Sushi did a voice piece on the AU, inspiring various comics and fan stories. The AU can vary between Sans simply having his head change to a Gaster Blaster, to taking on an entire transformation. One of the most popular pieces is a story written by A Bad Time called “The Best of Times, The Worst of Times”, aka BOTWOT.