Touhou 14 東方輝針城 ～ Double Dealing Character - Perfect Stage 6 Lunatic (NMNB)

Okay time to get serious. :V

The stage portion is pretty straight forward. The only real hard part is the obvious spam that you normally should always bomb. You really want to kill at least two of the enemies as soon as possible in order to not get overwhelmed.
The fast yellow section can be done easily by lobbing a few knives to the side and using your shot for the other side.

The first attack of the midboss is the hardest, you want to look where the bullets crisscross before they transform. Going there is usually safe, you still have to weave out of the wall though. The second attack is a heavily toned-down Kanaka's opener. You can actually stand still for most of it if you find the lanes.

The final boss opens up by slapping you with a wave of dense bullets. It can be pretty scary, but luckily Sakuya!A can kill it before it fires a second time.
The first spellcard is a bit RNG-based as the attack gets a lot harder if the openings are all over the place instead of in a neat line, as well as away from the boss.
Second nonspell is a giant amount of spam. You can actually misdirect the snowballs to the sides of the screen to make it a lot easier.
GIANT BULLETS. The round ones are static while you have to make sure to misdirect the heart bullets as they can and will wall you.
Sakuya!A trivializes this next nonspell.
For the next spell you want to prepare a bit of a route. When the openings between the blue knives are wide you always want to go right.
The next laser nonspell is a lot harder than it looks. The lasers are very fast, come from all directions and can also come at you from really odd angles. This one probably killed me the most in my attempts.
ENLARGE. This card completely sucks with Marisa and Sakuya as their hitbox is larger than the sprite. The trick is to never cross the kunai. It's completely static so memo a route.
Sakuya!A kind of breaks this next card. (　；∀；)
FINAL SPELL. The yellow bullets are aimed in your general direction so you want to stream and misdirect. When it's about time for the blue walls to appear, start in the center and move left and under it. Do the same thing for the next wall on the right and repeat. As long as you have no problem weaving through the kunai walls this spell should not give you any trouble.

Very easy final spell again. Kind of weird considering.