My main complaint is that the levels don't seem to be made for the mechanics: I can swing enemies around but the void at the edge of the small area punishes me if i move to much. The enemies appear aswell too close so as to react, maybe extending the camera view could help.
Overall very good presentation and interesting mechanics but the level design has to be rethougt to fit with the gameplay and make the experience truly fun, based around technique and not memory of where do enemies spawn.
Good job! :)