This game is so beautiful and well done! I loved the breaking boxes and barrels, and you have some included some really fun mechanics like "jumping" up the walls. It did take me a little bit to get used to the abilities, but I am not great at platformers, so that's probably why navigating was a little challenging for me. But the thing I found the most frustrating was dying in one hit. I realize that was the challenge, but for me, all the types of danger blended in so well with the background that I could not tell what was dangerous until it was too late. I probably wouldn't have given up so soon if I didn't keep dying.
But - I just want to say that I love the pixel art.