Board Thread:Questions and Answers/@comment-31235848-20170605124639/@comment-38557913-20190318232533

To everyone who hasn't beat Undyne: First off, ALWAYS try over and over again. memorize her attacks and discard useless healing items. What healing items should you use? Well first, Temmie Flakes heal 2 hp. Not happening. Second, dog residue, it may have the chance to heal all hp, but its gambling. You can't know if you'll win or not. so, those things you should as soon as possible throw away. What I have found most useful is the following: 5 cinnibunnies, 1 snow piece, 1 ab quiche, and 1 spider donut.

Take everything I said with a grain of salt, because I've only gotten to 5/6 of her HP, but also remember I have fought her 5 times in attempted genocide routes and have gotten them to their last attack.