#undertale strategy

So I did a pacifist run first (which was beautiful), and I’m now trying to do a genocide run (which is painful, but I want to see how it ends).  I just finally beat Undyne the Undying, after trying probably hundreds of times over a period of weeks.  She’s ridiculously hard and there’s no way around that.  People have already written strategy guides for her; I found this one particularly helpful.  However, near the end I discovered a strategy for one of her hardest attacks, and since I haven’t seen it mentioned anywhere else, I thought I’d share it.

It’s a strategy for her rotating-circle-of-spears attack (#9; see the link above for a description.)  I should note first that I’m playing on PC using arrow keys, so I don’t know if this will come out the same if playing on another platform.  Also, I only got to try it a few times, but it seemed to work most if not all of the times I tried.

STRATEGY:  Make sure you have in your inventory a couple of Sea Teas (available from Gerson’s shop in Waterfall).  Once you have started fighting Undying the Undying, make sure to drink EXACTLY TWO doses of Sea Tea before you get to attack #9.  This will give you the right speed.  As soon as Undyne expands the arena, press UP so that you are already moving upward as the spears spawn.  Once you hit the top wall, immediate move left, and just continue to follow the wall counterclockwise.  This pattern will cause you to miss all or most of her spears.  I did sometimes hit ONE of her spears when I was near the bottom-left corner of the arena, but once you learn where that spear will hit, it’s easier to dodge.  Other than that, just keep following the wall counterclockwise as fast as you can.  Her attack will end around the time when you start heading up the right wall, and you will have dodged all her spears except for maybe one.