Better than I expected.
However, you should add some power-ups to make the game more entertaining.

Great game! It's a simple concept that works well. Biggest complaint is the lack of difficulty. In other jumping games (such as Doodle Jump), it progressively becomes more challenging as you ascend. This is just the same platforms repeating over and over again, with a rocket which you can avoid every time. To increase difficulty, introduce new platforms that work differently or increase the spawning of the rocket over time. The sky also lacks detail. One thing that works perfect is the gameplay. It's fluid and fun.

very good, but way too easy.. and no real challenge once u master the game play
it doesn't keep on rising the difficulty, i managed to get to 3000 no sweat;; (needs to have a newgrounds API leader board; so gives a reason to keep on playing it. other than those two things.. is perfect.