Two-Player Instructions: Use the arrow keys for lime and w and s keys for lemon. Don't touch the white. It sets you back by one point and if the ball touches the white behind your paddle it sets you back by 2 points. The first one to 10 points wins. You can go into negative points. Hit the blue ball to score points. One Player Instructions: Use the arrow keys to move. Hit the blue ball to score points. When you have 20 points you win. Don't touch the white and don't let the ball touch it either.
Tell me in the comments if anything doesn't work. Thank you to @Ally811 for suggesting the one-player choice. Press space to stop all sounds.