No More Heroes 3 - Kimmy Love is a particularly tricky battle, but thankfully the numerous stage hazards will not result in an instant kill or even heavy damage. This means you can focus more on reacting to her attacks with the best possible options on hand, namely the Death Glove skills. As long as you're able to stay calm and avoid the constant pyrotechnics, Kimmy is actually a fairly straightforward boss since most of her attacks are easily avoided. That being said, do not underestimate her: getting caught by a stage hazard may result in you being comboed, and since this is Death Difficulty it's Game Over!
Got any suggestions or feedback? Feel free to leave a comment below and I'll try to respond as soon as I can!
Or, check me out on Twitter and give me a shout! ^^ //   / fullmetalyoukai