Oh wow, Ryo? XD That sounds really awesome, can't wait... It really must be super fun, his danmaku in Summer Interlude is pretty cool already~ Looking forward to playing it o/
So hmm... I did mess up in stage 4 XD Like, just bad movements... But in 5 it got harder... The fairies that shoot yellow bullets used to be easier... at least I could dodge most bullets, and now I can't not-bomb when facing them... I use Metal most of the time, and the bomb isn't really helpful in most occasions XD It's just a nice immunity moment, but damage and aiming...
In spellcards, I think Foam party is more luck-based and I just had really bad luck with the amount of water drops... Moisture, Slots and Roulette spellcards have such tiny gaps, I get claustrophobic during the roulette one...
But really, it mustn't be that hard and I just had bad luck... You said you toned the game down already, so Idk...