Touhou 8 - Imperishable Night - Perfect Stage 6A - Lunatic

A video of me fighting through stage 6A and its boss: the Brain of the Moon, Eirin Yagokoro, without dying or bombing.

Help with difficult attacks:

GENERAL:
Eirin's movement can be manipulated almost entirely since the way she moves horizontally is usually based on where you are relative to her. If you're on her left, she'll move left. If you're on her right, she'll move right. Use this to get some consistency in the patterns. The main use of this (at least for me) was on Apollo 13 since I find it harder to dodge if I move left.

GOD SIGN "GENEALOGY OF THE SKY BORN":
If you manipulate Eirin's horizontal movement, the only variation in the genealogical tree will be due to her vertical position and your position so you can at least partially memorise it. Staying slightly above the bottom of the screen will also help since if a laser is too low to avoid it by staying at the bottom, you won't need to move up. Unfortunately I learnt this about 3 runs before I got the perfect so wasn't used to doing this :P

RESURRECTION "GAME OF RISING":
This is quite difficult. First thing to do would be to get used to moving through the bubbles without seeing your hitbox since almost every dodge will involve having a bubble on top of you at some point. Other than this, learn to look around. I had so many deaths to the blue bullets or the medium sized ones because I didn't look ahead of where I was going. If you manipulate movements, you can rush this and have it captured quite quickly.

3RD NONSPELL:
Much like Game of Rising you need to be able to go through bubbles without seeing your hitbox. It definitely helps to look for big gaps in the waves before they start moving since you can usually (but not always) avoid getting trapped. If your unfocused character isn't Reimu, take care when the familiars are near you.

CURSE OF THE HEAVENS "APOLLO 13":
2 static patterns overlapped and aimed randomly. I treated this as a fixed pattern anyway and memorised a route through. This eventually improved my capture rate from 1/6 to 1/2 though my spellcard practice record is now 135/599 since I did 5 captures in spellcard practice every day. This is where manipulating Eirin's movements is key. I force her to move right twice for added staticness. Try not to let it trap you against the sides or bottom and dodge aggressively. Yukari at full power needs 2 waves to end it though very occasionally you need 3 if you don't deal much damage because the pattern forces you out from under her.

ESOTERICA "ASTRONOMICAL ENTOMBING":
Lots of strategies for this. Some people prefer to kill every familiar, some prefer to kill none and some kill only specific ones. I personally kill the 2 on the bottom right then work my way up the left until there's 22 left, ensuring that at some point I kill the 2 lowest familiars in the centre. Another strategy would be to kill only those lowest 2 in the centre and leave the rest. Do whatever you find easiest.