Talk:Flowey/@comment-8.28.251.75-20151017225844/@comment-27036118-20151018003334

This fight isn't really "unlocked." It occurs no matter what you do, unless you do a genocide run. The "True Ending" occurs if you go through the game without killing a single enemy, and you befriend Papyrus, Undyne, and Alphys. However, you do not get the trigger for befriending Alphys unless you get the neutral ending at least once.