Talk:Undyne/@comment-100.35.46.125-20151015232833/@comment-125.238.214.235-20151024122203

It is possible to befriend her if you have killed someone once in your run, HOWEVER, if you kill even a single monster in the cave she wardens (the one to the right of Snowdin, to be specific,) then you ''cannot befriend her. ''So, if you've killed Toriel, you may be able to still befriend her!

(...Unless Boss fights ALSO prevent this. All I know for sure is that killing a single enemy in the caverns will not allow you to befriend her.)