Board Thread:Questions and Answers/@comment-26553479-20160405005951/@comment-5956954-20160626091403

2cents wrote: I noticed this says that killing Papyrus before clearing out Snowdin aborts the route. Was this done in v1.1 or something because for me this doesn't seem to be the case as I usually just go back and kill the rest, red text and determination appear, and genocide continues like normal...

So do people actually get stopped by killing Papyrus and I'm apparently special, or was that just a one time thing? If you leave out any monster, it will abort the route, so probably yes.