I had to make an account to comment on here, I do not use itch.io usually nor I play the web games, but the HoloLive ones are really fun, so I wanted to leave my thoughts here.
The game itself is beyond well-made, and saying so is an understatement to how much of a great game you have created here, it's fun, challenging and each stage is really unique (except some enemies which have same attack patterns, but they are still fun.)
Aqua's "boss" fight was kind of my favorite? It was scary, stressful and I didn't know I had to light the torches until late on.
Marine's fight was unique, but it was frustrating with the rocks that came and her dashes.
However, the most frustrating fight (and the one I left the game on until I can get a better headspace) is Ayame's, the best way to describe it is unfair, with two dashes and two defensive abilities, the roof dash is already too much, and it's really hard to dodge without her doing some other attacks before, the parry is unnecessary and just there for an annoying factor considering you can't even jump behind her most of the time before she dashes, I was watching a video to know how to fight her, and to know she leaves no reward makes me feel this battle is overcomplicated for no reason at all.
I would think it's an skill issue on my part, but after trying so much, it just gets nowhere, and was wondering if this boss could be revised on a future update? Right now it's impossible to get past her.
Regarding the special abilities... I have found no use to them besides Fire, Peko's rocket is too slow and idk if it's better than Fire, the pink girl's (I forgot her name, but it's on the Casino) power has not seen any use on my part, and Marine's is too niche, I tried it on Ayame but I can't make it work either.
The comment regarding special basic attacks for each power is honestly a good idea, as it would give the player more variety and not just "Spam X to attack until you beat the enemy / boss."
Regarding the video I mentioned earlier, I saw the person had some ice shield ability, but I never found it before and thus I guess it was deleted later on? Seemed really good for defense, which is what Flare lacks, I know Megaman didn't have these kind of abilities, AKA there's no healing, defense and for some reason the saves don't give you health (AFAIK), but I think it would be nice to have something defensive, or maybe make the slide useful besides platforming aspects.
I have much more to say, and while the game is fun, these boss fights have been frustrating (Including the weird Fubuki tower) so I honestly need a break right now.
Any help for Ayame would be greatly appreciated, as I can't for the life of me beat her at all on her current state and much less knowing there's zero reward to it.