Talk:Mysterious Door/@comment-28040199-20160424173805/@comment-29523200-20160424174906

So that means do the True Pacifist run and avoid all of the names during the "Special Credits" (if at least one goes yellow, you screwed up, but I think you can replay it by saving the game before exiting the Underground).

If you've done it correctly, the text after it will say "Well done. Somewhere, a door opens" than "Touched names".

It's in Snowdin, after the room when you encouter Gyfrot (or whatever this reindeer's name is).