Battleships are large, heavily armed maritime vessels utilized by Bowser and his armies in Super Mario Bros. 3. Battleships are equipped with various artillery, such as cannons, Bob-omb launchers, and Rocky Wrenches. Their texture is the same as that of the airships in the game. Only one battleship fleet that guards Dark Land appears. The fleet, composed of three battleships, is stationed near the beginning of the area, just after the tank level, and is commanded by Boom Boom. Although the battleship fleet is stationed on the world map on what resembles a lava lake, the actual level depicts a brownish liquid that the player can swim in.
In the GBA version, battleships also appear in a World-e level called Koopaling Confusion. Besides the battleships themselves, it also takes place in an area that resembles a port or dock, which has a short lower path and a longer higher path; regardless, the player fights Ludwig von Koopa, though his health depends on the path chosen.