I can't beat Shou on Hard.
Either bomb the first nonspell or somehow learn how to dodge it.
If anything makes you feel better, the Lunatic version is pretty much identical.
I usually autobomb RTG, even though it's static.
Second nonspell can also bullshit you when the balls go right into the free space between the lasers. Autobomb if you want to, as the reaction time you get is too short.
What I've done for Vajra is just flailing around unfocused and slowing down at the bottom whenever I can. I'd autobomb it, as capturing it at less than 4 power will probably end up with a stupid death while trying to avoid a timeout or clipping something because it's too long.
Demon of Purification doesn't seem that hard either, but it shits on me every single time. When in doubt, bomb....yeah. I didn't give you any real advice, as this stuff is a bit too random.
If all goes well, you should get out with 2 lives lost.
I've had problems with UFO hard too.....then some cool people told me to get a better bomb route and I've suddenly reached Byakuren with 6 lives on my first attempt.