I love that you included 2 death animations in this. The art is delightfully twisted and the fast pace of the game keeps it exciting.
Not sure if this was just my computer or the intended design, but audio didn't work for me until the timer reached 10 seconds. (Made me jump to suddenly hear sound, haha)
For future iterations I'd love to see a simple animation of the character lifting its arms when it comes into contact with a box. Just a polish thing. I agree with another commenter that you could probably decrease the level size by about 20% and have a much tighter game.
Great work!