You control a small mouse on a grid. The objective is to trap patrolling cats by pushing blocks around them.
You need to strategically shove the blocks to completely surround each cat. Once a cat is fully enclosed by blocks (or the level boundaries), it gets trapped and turns into a piece of cheese. The challenge lies in planning your moves, avoiding getting caught by the cats yourself, and maneuvering the blocks within the confined space, sometimes dealing with immovable obstacles.