

Doing so turns the mouse into a dog for a short time, during which it can eat the cats for bonus points and temporarily remove them from the maze. The player can pick up bones from the corners of the maze, then use them later by pressing a fourth button. Contact between the mouse and a cat costs the player one life. The player can also escape the cats by entering the "IN" box at the center of the screen, which will teleport the mouse to one of the four corners at random.


The maze has three sets of color-coded doors, which the player can open or close by pressing the corresponding buttons in order to block the cats' approach. Six cats patrol the maze and chase the player, with two present at the outset and four more being released one at a time. The player uses a four-position joystick to maneuver a mouse throughout a maze and eat pieces of cheese scattered along the paths.
