Kisume's spellcard: Dodge the balls, remember you can warp across the screen. Avoid the fat lasers.
Yamame's last: Fast dodging.
Parsee's mid: Misdirect the aimed bullets then dodge through some lines. Misdirection is not very big, you're going too far if Reimu's focused shots stop hitting Parsee.
Parsee's last: Misdirect the aimed things. Predict when they'll fire and move accordingly.
Yugi's 2nd: If this is midboss non, stream the aimed stuff and dodge the rest. If it's the end boss non, destroy some yin yang orbs unfocused and dodge.
Wind: Dodge, bubbles are smaller than they look.
Yugi's post wind non: Stream like in the video.
Orin's non: Make small circles.
Satori's 1st/2nd: Tight dodges that can be memorised. Might help to know that holding down while at the bottom of the screen then moving horizontally means you move slower.
Stage 5: Idk lol. You need to be more specific anyway...
Blazing Wheel: Left right repeat.
Okuu's 1st: Force 2 suns to aim at the same position, dodge the small bullets while moving around the suns.
Okuu's nons: Aimed bubbles, you can go around the lines on the 2nd and 3rd set of lines of each wave. The 1st set has to be dodged but has wider gaps on one side of the screen, starting on the left then alternating.
If anything doesn't make sense (Okuu's nons probably don't) then look at
Nindel's LNN. For the most part, hard has the same patterns as lunatic just toned down a bit. Sorry about being vague but it's a pretty big list of tuff and I'm lazy + not too knowledgeable about SA outside of Stage 4 and 6.