Thank you for the feedback!
I really feel that I have failed in the regards to dificulty. With a bit more time I would like to implement some way for the enemies not to be stun-locked so easily. I made the hitboxes too generous because personally I hate it when I feel that a jam game is too difficult, so I erred on the easy side.
The storyline was left low on the list of priorities. The first part of the game loosely follows the plot I wrote in the description. To be honest, I prefer there to be little to no text, so I never intended there to be cutscenes or anything, but I would like to have a few short dialogue bubbles. Eventually I thought it would take too much time and would ultimately not be that important, so I left them out.
I wanted there to be another girl! My original plan also followed the "My very best friend" theme, and you'd have a friend with you in the beginning, which would appear to be kidnapped. The goal was for the end boss to be her as a magical girl, being responsible for the invasion. But I just repurposed an enemy I wanted to work as a mid-level threat as a boss.