aight weird lil thing I noticed about papyrus and sans’ house
their rooms don’t line up with the rest of the interior (I scaled the rooms down a bit to make the entrance the same size as the door)
however, when you swap their positions it’s a perfect fit
the space between their rooms is also a bit larger than sans’ room, with the bone painting at the spot where you’d expect the door to a third room to be.
so like this /could/ mean I’m just reading too much into things however it could also mean gaster’s room used to be there and idk about yall but i know what i’m going with
also interesting to note maybe is that papyrus’ room is the only room in the entire game that doesn’t have any background music, not even after you beat asriel and “reunited” plays everywhere else.