The central mechanic is fun, it adhere's to the theme, the application runs correctly, good stuff! my two bits of constructive criticism are 1) Checkpoints are your friends! If you don't want to learn how to make them, then always try to design levels where it's not so easy to bone myself :-P 2) the movement speed was a little over the top. Slowing Carrie down and zooming in the camera could go a long way towards making this look more compact and polished.