Neat! Took me a little while to truly figure out how to play and I had to look at the tutorial twice but I think that is more on me. Once I did, it was a pretty fun physics puzzler. I did have problems with I believe it was the fourth level. The walls were so close together that it was very easy to bounce the maximum times before it made it halfway down the corridor. Still fun regardless and I've got a bit of a soft spot for crabs so that certainly helped too.