Really unique idea. I loved the art and the gameplay. Some of the movement required 2 hands on the keyboard, and use of the mouse to keep yourself moving forward, which was a bit impossible. Perhaps, limiting the left/right to keys that are closer together so that the player can still keep their hand on the mouse. Juggling all the movement was definitely challenging.
Overall, I think that you guys built something very impressive here for 3 days. Incredible job!