you move the cat around trying not on bump into the edge. If you do, you get bounce points. The less bounce points, the better. Also try not to stop the mouse pointer. You also get bounce points by stopping. And when you get 10 bounce points, a game over screen pops up. Also, press the arrow keys to change the cat's color.
I make an update to this game all the time. Let me know in the comments about what I should add. Survive 180 seconds and you win. Also, bounce points might still add up after you win; I will be working on this glitch. 10/18/2020: Changed Soundtrack 10/22/2020: Allowed you to choose soundtrack using number keys