This is a pretty interesting idea. The one-button gameplay was simple to pick up, and the difficulty scaled fairly nicely. If I had one complaint to leverage it's that the camera doesn't speed up to catch you if you go upward too fast. I ran into a few situations where I jumped on a barely onscreen arrow and went soaring into the sky only for my game to end not long after because I guess I fell on spikes that I had no way of knowing existed.
The graphics are wonderful, and even on my onboard-graphics'd laptop the game looked great and played just as well. The sound effects were simple but did their job well, too.
As for the theme, I'm not sure if I missed the point or if the game didn't really follow it. Regardless of that, though, the game was fun and ultimately that's what matters most.