This title covers two different games: - a classical battleship-like game, which, by using tracking system by means of polar co-ordinates, is more modern than former types; - a "battle of missiles", new game in which success depends mainly on deduction and method. Both games require different printed forms, but are provided with the same support for two Radar screens: the first one is used to "emit" missiles and to track firing against the enemy, the second one to place ships or missiles and to "receive" enemy firing.