Board Thread:General Discussion/@comment-4504826-20160426040035/@comment-30305311-20161023181918

Could be the fact that you have to fight Undyne the Undying. And not to mention that you're going to have a Bad Time.

But for me, it was when I almost cried after killing the bosses. Papyrus... Undyne... Mettaton... And Sans...... don't get me started on how much his dying dialogue hurt.

That and you want to redo genocide for the awesome and fun battles... but then you realise that you have to go through all the heartbreak and farming again ;-;