The physics are quite unstable on this one, specially the rock flopping onward and backward. Most of the time I lost notion of were the rock was, would be nice to have some sort of rope or indicator.
Nevertheless, it was a fun experience. Reminds me of those "ragdoll" flash games. The art, while simplistic, was good and colorful. And +1 for the submission description, made me laught.
Good job!