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Instead of trying to randomly guess what grid an opponent's battleship is on, after the player takes a shot, the player will hear a sonar ping noise. The shorter the noise, the closer the player is to hitting a target.

In the 1 player game, the player has a limited number of chances to sink the enemy fleet of ships, while in the 2 player game, players take turns trying to sink their opponents ships before having their own ships sunk.