Great concept but the execution is rather poor. At least for the Jam version, I haven't touched the post-jam version yet.
The controls are super fun, Really the adrenaline-pumping kind of stuff.
But the level is a gigantic confusing maze that doesn't help the player go the right way. All the places kind of look too alike so it can be hard to tell where I've been. An auto-map would have been great.
Maybe other thing but it's not as major: maybe you'd want to communicate to the player about the "blue gates" at the start of the game, to give them an objective. Like, for example, making them visible from the first screens. I feel like I've been aimlessly wandering for a bit too long.
And the bosses are possibly not balanced enough (again, in the Jam version). Most particularly, there's Aya's last attack pattern (Illusionary Dominance). It was a huge pain to clear. I spent nearly 40 minutes on that one phase alone. I think it's just too overwhelming what with the unkillable, rapidly summoned minions. Thank goodness that progress isn't set back far at all when I miss.
I published a full playthrough of the game's Jam version. This is primarily for players who can't quite reach the ending.