Board Thread:Questions and Answers/@comment-27870742-20160226093936/@comment-27875522-20160227034351

As a tip, at the end of the pacifist run there are some dialogue options that determine the ending. You should try them all out both times so you can experience everything. Though if you had kept with your neutral save and not killed anything, befriended everyone, etc. in it, you could have just continued from there and got the pacifist ending without having to redo it.