Feedback to the Miko battle:
1st noncard: Not a bad interpretation of a Miko-like attack at all. Sometimes it seems that you'll get several fairly fast walls nearly simultaneously. I had trouble with it, but it could be because I play on Normal/Hard, not Hard/Lunatic.
Ascent Between Twelve Colors: Start firing bullets a little later (not during the cutin animation). That pattern of the arrowheads is interesting and Futo-like (her last Spell Card) and the bubbles provide more things to dodge.
2nd noncard: Arrows that explode into red bullets at the bottom of the screen? I think you should try to prepare the player for it (maybe start the attack with Miko shooting exploding arrows to the bottom near the left and right corners). It's very easy to get killed if you don't know about it in advance, and many players don't appreciate that. Other than that, it's good.
Desire of the Rising Sun: Hey, are those Lissajous curves? Interesting choice, but the difficulty is inconsistent between waves (because of random numbers somewhere in the script?).
3rd noncard: A fun way to use circles, but it can get nasty if you're unlucky with the angles (random angles again?).
The Pagoda Ablaze in Blue: Good warnings before the bullets appear. The pattern reminds me of Futo and Shou, but that's not really a bad thing. It looks intimidating and is reasonably dodgeable. Pretty good.
4th noncard: Quite similar to the noncard in Ten Desires. I can't really be fair about this one because I'm bad at crisscrossing (diagonal) bullets, so I won't write anything biased.
Five Wheels of Reincarnation: I don't know if I'm just an idiot, but I wasn't sure whether I was supposed to stay in a ring or avoid the rings. Squeezing yourself in the middle of the ring before it contracts can be annoying if you get unlucky/careless with the cards (can probably be avoided by proper positioning). I'd also increase the delay between the contraction/expansion of one set of rings and the appearance of the next set because it's hard to dodge the large glowing bullets while staying in the ring (but again, it could be because I'm a bad player). Anyway, the concept is still all right.
True Administrator: Devil's Recitation, Miko style? I like that you changed some of the attacks to make this stand out from Shinki's/Byakuren's. The aimed, curved lasers are a little fast.
Violation of the First Rule of Harmony: The sine waves of cards are hard to avoid in the first playthrough, but are reasonable if you know how to do it. Similarly for the curved lasers.
Ten Desires: Cards from multiple directions. That's actually an interesting pattern/card, but I can't help but wonder if
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It may sound like I didn't, but I enjoyed the script.
I hope that some of this helps and that I wasn't too harsh.
Overall: The patterns seem pretty creative (note: I have never played Phantasmagoria Trues, so maybe someone that has can tell if some attack here is suspiciously similar to a PT attack) without being out of character. There's one thing I'd like to mention: Some of these attacks require trial and error. Some players don't mind it, while others think it's annoying. Of course, whether you want to include it is up to you.
As Sparen said, the visuals are great
