Not sure how it relates to Magical Girls, but maybe it is explored further in the game (I can't pass through the corridor with two guys on the second level :<)
Some nitpicks from me:
- mouse click could be doubled by some keyboard input (as cursor is not used anyway)
- enemies on the first level could see and attack you through walls
- it seems like in order to attack it is strictly required to "sneak from behind" even when enemy can see you, that is a bit strange
I hope to see you expanding on your skills! Well done participating!