Talk:Papyrus/@comment-27123950-20151108145136/@comment-24023479-20151108164412

That scene is designed for the sake of humor. You need to encounter Undyne in the story and this just makes it a little more lighthearted. If you tell him the truth, he then repeats that to Undyne believing you'd be clever enough to change your outfit after hearing that suspicious question. If you tell a lie, he then tells Undyne the opposite of what you said, trying to prevent Undyne from attacking you as he believes you are telling him the truth.