the title screen appears. By press any key the game grid is displayed.
There you may adjust following settings:
[F1] 2 players or 1 players vs computer
[F3] changes speed: 1 (slow) - 6 (fast)
You can read the current settings on the lower screen border.
By pressing [FIRE] you can start the game. If you cannot ward off a
ball (= a hit for your opponent) your game partner receives 10 points. When
achieving 100 points (= 10 hits) the player concerned wins. After
[FIRE] you return to the title screen.