Board Thread:General Discussion/@comment-4504826-20160419213859/@comment-26887879-20160419220524

Apart from stronger versions of regular monsters (Snowdrake, Aron, etc.), bosses being more difficult, for example, Undyne has some of her Undying moves during Pacifist/neutral run, Asgore's attack and defense won't fall down when you talk to him/eat pie during Pacifist run, actually being able to fight Mettaton NEO... That's all I can think of right now.