Use the arrow keys on your keyboard to rotate the controller wheel and catch the flying dots as they reach the centre. If you miss three dots, the game is over.
Credit codeclub.org and projects.raspberrypi.org This is the 4th project in their Module 2. For the project tutorial see: https://projects.raspberrypi.org/en/projects/catch-the-dots For more project tutorials goto codeclub.org and click on 'Explore Projects'.
