In this game you play as either the cat or the mouse. As the mouse your objective is to survive as you make your way from the start to the finish of the map. You are the hunted. You must utilize your speed, size, sense of smell, and hearing to avoid the cat. As the cat you are the hunter. Utilizing your claws, teeth, strength, sense of smell, and hearing, your objective is to capture and kill the mouse before it reaches the finish point on the map. Levels are based on real-world locations: House, Backyard, Park, Forest, and so on, with multiple variations of each (i.e. a large house, a small house, a backyard full of junk, a backyard with only grass and no real cover, and so forth). Once you have played through the single player campaigns for both the mouse and the cat, take your skills on-line. Are you the superior predator? Are you the most elusive prey? Or are you the best no matter which side of the coin fate deals you?