Pong81 (ZX 81) by Salvador Camacho

You control the racket, which is at the bottom of the screen and you have to prevent the ball from reaching the bottom. You move the racket with the keys, Q to move to the left, W to move to the right. Start by raising the ball, when it collides with one side it changes the horizontal direction. When it collides with the top, the ball will drop. When the ball hits the racket it will go back up. If he doesnt collide with the ball, the game ends. To play again you must put RUN, pressing the R key, and press enter.