Not really on topic, just a small advice to help you in PCB.
Unless the screen is clear of bullets, or you want to capture spellcards, always break your borders. This clears the screen, and makes it safe for a good three seconds, while giving you some cherry points to get a border faster.
Or maybe you're like me and lose like 20 bombs in stock every run. When going for a clear, your bombs are additionnal lives, so if you die with 5 bombs in stock you lost 6 lives right there.
This won't really help with Yuyuko, but it should get you the necessary 1 or 2 lives in stock to clear her two last spells.