Board Thread:Fun and Games/@comment-27524978-20160317154321/@comment-26887879-20160522193342

Maybe Sans can't go to Ruins because Ruins never opened before Frisk and he can't teleport to places he has never been before... Or maybe he just can and he's either been there secretly or simply respects Toriel's privacy...

Anyways... I thing have noticed is that canon Sans' nose hole is a triangle, while fanartists usually draw it as upside down heart (probably only to make him look cuter).