Here's my fail run:

Stage 2-5 looked too hard, so I gave up.

The game has good music.
The second jump (mid-air jump) didn't always work when I wanted it to.
When the game switches stages, it brings up the new window in the center of your main monitor.

You can download the game at http://www.mattmakesgames.com/

Game is hard maybe even too hard. Good try buddy.