Made it to the top, but it wasn't easy!
These blocks sure are slippery! I would maybe add a bit of angular and linear drag in the cube's physics to make the player feel more in control (although who's in control when JAZZ IS A-PLAYIN' :D)
Very good music taste in my opinion. It did fit the colors and the craziness of the environment without being too annoying.
Now I'm just a bit sad that I got all the way to the top and nothing happened (apart from my heart skipping a beat each jump). You could have turned this into a game in an instant, even if it's just one level. I hope you consider this for the next one!
Hope this helps, take care!