Green uses WASD to move and red uses arrow keys. When you start the background will change to blue for 5 secs. Then it changes to yellow and the game begins! Try to get the colored ball that wanders around the screen. Every time you do, get 10 points! First to 300 wins, and the background changes color. You can also accelerate. Green player presses 1 and red presses 0. This will give that player acceleration for 5 secs.
To the Harry Potter series!