Board Thread:General Discussion/@comment-33479322-20171025151623/@comment-32182236-20171025152203

You can't befriend Alphys until you've already finished a Neutral Run-You can simply not kill anybody, and befriend Papyrus and Undyne, but that still counts as Neutral-However, if you do this, you can just reload your file, so you don't have to play the whole game again, as Alphys' date will then be unlocked.