This was great! The one thing I personally wanted was a way to avoid the skelletons. There was one or two levels where you could go behind them, but some more creative uses of the spikes or blocks would have been amazing. Not to echo what everyone else is saying, but the combat elements were a bit stronger than the puzzle elements.
At the end of the day, I am your pupil sensei. Teach me your ways of high quality art, simple but addicting gameplay, and a faster way to reach the bathroom.