Compatible emulators

Synopsis

The goal of the game is to maneuver a submarine on the screen, the "N-Sub", with the joystick and to sink the enemy fleet with torpedoes in the blue sea of Cobalt. The player can shoot torpedoes vertically and horizontally from his submarines by pressing two separate FIRE buttons. The player can hold the button longer to fire three torpedoes in quick succession. Enemy ships attack the N-Sub with missiles, torpedoes and depth charges. A gameplay game ends when the player defeats a wave of twelve enemy ships. Successive turns increase in difficulty. The player has multiple lives, or chances to continue after being hit by an enemy ship, and can receive more lives by achieving high scores. The game ends when the player exhausts his life.

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