Thank you so much for sharing your thoughts! And thank you for bringing up certain visual and audio critiques, which haven't been brought up much in other comments.
The dialogue would have made more sense if the game was longer, because currently, the game ends before the story gets to pick up. We could have tried cutting down on some of the dialogue for the jam, but we wanted to introduce the characters, especially because of the theme of the jam. We even had a few more characters that didn't make the cut, sadly...
The FX in general, both visual and sound, probably should have had more time dedicated to them. This was our first jam, and so we didn't really realize how packed the last few days would be. After the Metroidvania Month rating period is over, we plan to give one last update for purposes of the Magical Girl jam, though that's mainly focused on making the controls more fluid and intuitive, so that less people get stuck on the boss. But we'll look into your suggestions as well!
Oh yeah, and we're also glad the save feature is working as intended, because for the people who played the orignal version, they'll be able to fight the newly patched boss without having to replay the whole game.