Hello Maribel,
thank you for your reply! Nice to see another Seihou fan also, as you said not many people play them unfortunately, so finding information is very limited.
Yes I completely agree about having really limited resources, you only get 5 extends! So far I've done no bomb clears for Easy, Normal and Hard with all shot types, but the jump between Hard and Lunatic is quite drastic when going for a no bomb run. If you've done Easy already, you shouldn't have much trouble with Normal

Hard is a different story though. . . Lunatic then is terrifying.
Thank you so much for the luck, gonna need it haha

Albeit being frustrating, it's still fun though, such an adrenaline rush. Indeed, that's where all my lives are going. I don't have much trouble with the rest of the Reimu fight, but that orange spam Reimu does is the match ender for me.
Thank you for your support and for replying. Didn't really expect to get a reply on this thread since Seihou isn't so popular.