Player 1: you're the color red. Press the up arrow to go up, down arrow to go down, and space key to shoot. Player 2: you're the color blue. Press w to go up, s to go down, and d to shoot.
You might be thinking "Oh, this'll be easy now that I have a buddy!" But don't click the green flag to fast. The rocks move faster and it's harder to stop yourself from hitting a rock.
