Inventive!
Great concept, nice mash up between different ideas.
Though I liked the concept and generally enjoyed the game, I found it a bit tedious.
It's slow pace and feel (which comes from movement speed and sound) aren't a must have in this game. I think you've got the idea well down, but you might still need to play around with the concept - movement speed, powerups, sound and styling till you'll have the perfect product.
Anyway cool game, hope to see more!