I love the art, I love the idea of having to traverse the level back and forth, very good design. I had some challenges with hit Hit box detection, At one point I could stand on spikes, with no ill effect, but most others I had to be super precise to get around, becuase I would hit them mid air, other than that I thought it was really solid!
I love the different mechanics like opening doors and pushing barrels, all the animations look great!
Great Job!