The goal of the game is to sink all of your opponent’s ships.
After setting up the dividing wall, each player places their ships (hidden from the opponent) on any squares of their own game board. Ships must not touch each other directly. The player whose turn it is calls out coordinates to the opponent, e.g., C3. The opponent checks whether any of their ships has been hit and presses the red button to indicate a hit or the white button to indicate water; an explosion or a water sound will play accordingly. The lights turn on one after another. When the projectile lands in the water, the lights go out. In case of a hit, the lights flash alternately. The shooting player marks the corresponding square, e.g., C3, on their board mounted on the weapon wall with a red peg for a hit or a white peg for water. The opponent marks the received hit on their ship with a red peg. As long as the player keeps hitting, they may continue shooting.