After much pain, I have just managed to take her down last night. The one thing that I noticed was that the sand traps you fall into or can reveal by waving your beam katana, she will go to one of them and try to conceal them. If you manage to stay close and catch up to her while she’s about to begin filling up the holes, you can get some easy hits. If you have multiple sand traps uncovered, there’s a high probability that she’ll go from one sand trap to another, and if you stick close to her, you can rack up even more hits.

For the multiple missiles she shoots out, I try to get up close to her, charge by holding down “A” and release right when the first missile is about to hit. If timed just right, it’ll cause all the other missiles to explode and you’ll score an extra hit on her. I’ve manage to pull it off a couple of times, but it’s tricky.