I got a copy of Undertale from my friend when it released. I was excited to play it, and i loaded it on my laptop. The game was normal and the same as it should be until I got to Snowdin and things seemed off, when sans said his brother was coming papyrus’s sprite didn't appear. Sans said "oh, I thought he would have been here by now. well, continue what you were doing kiddo and see you soon" I swear I remembered seeing papyrus appearing in that part during the play through.