Beautiful, fun little game. Both the slow down and bomb ability were fun and useful to use. I liked the wave-like movement of the clouds. I got to 72 :)
My only two constructive comments I would add are, I wish there were some mention of what the controls were in the game itself, and I wish that the bombs were a different color than the ninja stars (I'm not sure if that was intentional).
Extremely polished, and gameplay is tight and immediately fun. Really great job here :)