Real World Information
Yamato (大和) was the lead ship of the Yamato class of Imperial Japanese Navy World War II battleships. She and her sister ship, Musashi, were the heaviest and most powerfully armed battleships ever constructed, displacing 72,800 tonnes at full load and armed with nine 46 cm (18.1 inch) 45 Caliber Type 94 main guns. Neither ship survived the war.
Named after the ancient Japanese Yamato Province, Yamato was designed to counter the numerically superior battleship fleet of the United States, Japan's main rival in the Pacific. She was laid down in 1937 and formally commissioned a week after the Pearl Harbor attack in late 1941. Throughout 1942, she served as the flagship of the Japanese Combined Fleet, and in June 1942 Admiral Isoroku Yamamoto directed the fleet from her bridge during the Battle of Midway, a disastrous defeat for Japan. Musashi took over as the Combined Fleet flagship in early 1943, and Yamato spent the rest of the year, and much of 1944, moving between the major Japanese naval bases of Truk and Kure in response to American threats. Although present at the Battle of the Philippine Sea in June 1944, she played no part in the battle.
Yamato was sunk during Operation Ten-Go (April 7, 1945) after her magazine exploded. She was hit by at least 11 torpedoes and 6 bombs.
For more information see the Wikipedia Page
The Yamato is the largest battleship in the game, and given that it is the final boss it is definitely a force to be reckoned with. Not only it has large three-barreled cannons on both the front and rear (the only boss in the game to have these), it's bridge is equipped with a lot of smaller cannons.
The Yamato is the only boss that the player is forced to take down completely. Failing to get a 100% destruction rate will force the player to replay the whole fleet approaching section again.
The Yamato once again appeared in the first stage of 1942 Joint Strike, however the player can't attack it and the ship appear in the aileron roll cutscene only.