Talk:W. D. Gaster/@comment-38407842-20190203174819/@comment-35615238-20190212220715

One of the files in Deltarune was dated to be made in 2012. This means that Toby probably had Deltarune in mind while creating Undertale, hence the existence of the "Clam Girl" NPC, who hints about Susie, a major character in Deltarune along with the picture in Sans's workshop saying "don't forget".