As for actual feedback: I feel that there's not enough feedback for when you get hit or hit an enemy. I thought I was kicking their asses until I noticed my life at the top was getting lower. I would improve that!
Also, it's a bit difficult to understand the mechanics behind the "Shift" action. I'm still not sure what it does. I thought it was running, but aparently it can make you jump higher? It seems to basically increase my velocity in the direction I'm currently moving, but that's all I got.
Still, I made it to the end and was sad to see that it was over, which is usually a good sign! Very interesting take on "magical girls"!