Hungry Snail

A tile puzzle in which the ground itself is the moving part. The snail cannot climb or jump, so the only way home is to slide the pieces of the path around until they line up end to end under it. Stars sit on tiles you would otherwise never route through, and taking them usually means solving the level twice: once the short way, once the greedy way. Hungry Snail starts almost insultingly simple and has stopped being simple by about level ten.