Airship

An Airship is a large, propeller and Rocket Engine-driven ship that can soar through the sky. Airships are most commonly equipped with cannons (which can launch cannonballs), Bullet Bills and Bob-ombs.

Super Mario Bros. 3
In Super Mario Bros. 3, several Airships are used by Bowser and his Koopalings in their invasion of the Mushroom World. Mario or Luigi would need to avoid the various obstacles and the Rocky Wrench crew of an Airship to reach its main cabin, where the Airship's captain could be fought. If Mario or Luigi failed to conquer an Airship, it would fly away to another location on the world map. However, if the Airship was weighed down by an Anchor, it would be unable to do so.

Super Mario World
In Super Mario World, a crashed, ruined Airship, named the Sunken Ghost Ship, can be explored in Soda Lake. Completion of this sunken Airship is necessary to unlock the Valley of Bowser's entrance.

Super Mario 64 (DS)
In Super Mario 64 and Super Mario 64 DS, what may be an Airship appears in Rainbow Ride. Wind blows there, and a Lakitu, Bob-omb, and Goomba appear aboard it. In one mission, Wario needs to use his metal ability to grab a Star on this Airship (in the original the metal form wasn't necessary).

The Mushroom Kingdom: Rainbow Cruise/Rainbow Ride stage featured in Super Smash Bros. Melee and Super Smash Bros. Brawl would give this Airship a return appearance; it is the beginning platform in these stages, and carries players left until it hits a platform-filled area and sinks, only to be generated again later as the automatically-scrolling stage loops back to its beginning. Of note is that this interpretation of the Rainbow Ride Airship is actually more Airship-like than the original one; while Super Mario 64 showed it to only have wings keeping it afloat, the Super Smash Bros. series also gives it the propellers common on traditional Airships.

Mario Kart DS
In Mario Kart DS, the race course Airship Fortress appears in the Star Cup and partially takes place on an Airship, which is in the midst of attacking a collapsing fortress; like the Airships of Super Mario Bros. 3, the Airship portion of Mario Kart DS's Airship Fortress track is filled with Rocky Wrenches, Bullet Bills and Rocket Engines.

Mario Hoops 3-on-3
In Mario Hoops 3-on-3, Black Mage, White Mage and Ninja's court, the Rainbow Ship, is a large Airship adorned with various statues and a large basketball court on it.

Super Mario Galaxy
In Super Mario Galaxy, Bowser and his Koopa Troop attack Princess Peach's Castle with Airships. Later in the game, Mario will have to fight enemies on Airships. There are three Airship stages. In the Good Egg Galaxy, two Airships are commanded by King Kaliente. In the Space Junk Galaxy, a larger group of Airships are lead by Kamella. Finally, an entire fleet Airships are lead by Bowser Jr.. Bowser Jr. also rides a small Airship throughout the game.

Television
A single Airship, owned by Bowser and only ever referred to as the Doomship, appeared regularly throughout The Adventures of Super Mario Bros. 3; like its game counterparts, the Doomship was equipped with a large amount of artillery and also possessed a trait not seen in any game's featuring Airships, the ability to teleport to other locations. The Doomship was built by Kooky von Koopa.

Literature
In Nintendo Comics System, an Airship only ever made one appearance, in the issue "Mutiny on the Fungi", which had Bowser and his crew of Koopa Troopas and Mushroom People using an Airship to steal various treasures.

Airships also appeared in several Nintendo Adventure Books, where they were used by Bowser and the Koopalings; like in The Adventures of Super Mario Bros. 3, the Airships of Nintendo Adventure Books were only ever referred to by the moniker of Doomship.

Trivia

 * The Airships in Super Mario Galaxy share music with those of Super Mario Bros. 3.
 * While Airships are absent from Paper Mario, their music is remixed for the Koopa Bros.' Bill Blaster attack on Mario and his partners.