Found a glitch, overall good game
I love this game I have played it many many times. Every time I play it, it is fun. You did a good job with the art, and the game played smoothly. I did not face any lag at all. Also the music choices were very good it was like the music syncs to the game.
Now, for the glitch. I was on the last level, the one with the boss. I hurt him once, then jumped at an angle where you came up from level 3. I fell through the floor and right now I am still falling.