Use the arrow keys to move green's pointer, and W, A, S, D for red's. The ends of the paddles point towards the crosses (well, duh). If the ball touches one person's side of the floor, the other gets a point.
The music is super slam dunk league: https://www.youtube.com/watch?v=r7dU9Qb5DCw&t=70s Oh, yeah.
