The mouse runs through a cardboard labyrinth of differently shaped cardboard boxes and tries to collect all cheese slices on its way. The more cheese slices it collects, the more points it gets. The end score is the total amount of points collected till the end of a run.

On its path through the labyrinth the mouse will also encounter obstacles. In order to pursue its cheese chasing quest the mouse needs to overcome every obstacle either by bypassing or by jumping over it. There are fixed (static) and moving (dynamic) obstacles. When the mouse runs against many static obstacles, it becomes dizzy and more difficult to control. The more it hits, the dizzier it gets. The dizziness disappears over time, if you manage to maneuver the mouse carefully past the obstacles. If this is not the case and the mouse continues to collide with static obstacles then it passes out and the game is over. Moving obstacles, such as Mousetraps, must be avoided at all cost. If a mouse gets snapped by a mousetrap, the game is over.