This was really cool. I have been following development on the idle thumbs forums and was excited to try it out. I have fond memories of using these tracks for hours and really getting into a Zen state. The controls set up and the physics did a good job of bringing that back. So did the sound effects. The story element was a nice touch and was a neat way to move up through the difficulty.
Good work on having a vision and following through! It's really neat!