Interesting concept, took me some time to realize how the rocket worked. I passed the first level by just jumping because i realized time didn't tick down while you are in the air. It was quite fun, though it was more of a platformer than puzzle game, which is fine, but i don't feel like that was the intention. Could use some light music. Other than that, i like the limited amount of movement idea, that's a fun concept for a puzzle game :) PS if you have the time please check out my game too.