The art is clean, well polished and well thought out - colours for the full screen to indicate powers is a nice touch. I absolutely love that constantly turning die, and the pickups, both of which I found mesmerizing to watch.
I found that I wasn't able to move while using the climb powerup in the main level, which meant that as far as I could tell I wasn't able to progress - enjoyed my time with the parts of the level I was able to reach though :)