Thunderball!

For a normal ball action game, press 1, 2, 3 or 4 on the alpha-numeric keyboard for one, two, three or four players. For a slow motion game, press 5 for one player, press 6 for two players, press 7 for three players and press 8 for four players.

Players 1 and 3 take turns using the right hand control unit. Players 2 and 4 alternate using the left hand control unit.

To shoot, pull the joy stick back and release. The longer you hold the joy stick back, the greater the velocity of the ball. Audio beeps will indicate holding time.