This is quite a cute little idea and it is quite an interesting game to play as well. I quite enjoy that there is more than just pushing them in the right direction and you can effectively use the other snails to extend your timer and help get yourself into a better position to get all the crabs shelled. The music is downright charming as well for it. However it does seem that Levels 3 and 4 don't complete when the crabs all have shells and the quit button just causes the game to freeze up. But overall I liked it.