The Subspace Gunship is described as the ultimate weapon of the Subspace Army. Its cannon can fire a blast which 'infinitely rends space' and that can create the effects of the detonation of a Subspace Bomb at great distance. Ganondorf forces the R.O.B.s in the Subspace Bomb Factory to detonate the Subspace Bombs there in order to create a large enough area of Subspace to bring in the Gunship. The Gunship is the largest ship in the game by far, and is commanded by Ganondorf and Bowser.
The Gunship consists of a slender, mostly cylindrical forward half and a thicker back half, the entirety of which is colored gray. Two pointed ends come out of the bottom of the Gunship. The sides of the back end are circular, which is the general shape of the emblem of the Subspace Army. A large number of vertical segments stretch out of the Gunship's core, resembling buildings; their purpose is unknown. The front half of the Subspace Gunship is its main cannon, and is fairly simple in design. The cannon fires energy in the manner of the Death Star in Star wars. A thicker, horizontal segment houses five batteries of cannons.
The Gunship is captained from a small platform on its back half. In the cutscene The Great Invasion, Ganondorf and Bowser command it from this platform. It is unknown how their commands are issued, as there apparently is no means of interface with the Gunship itself on this platform.
The Subspace Gunship has a battery of five turrets stationed on the main cannon, on top of the Gunship. They are the battleship's main armament for engaging other ships. These turrets fire orange blasts of energy, one of which was responsible for destroying the Halberd. The circular sides of the Gunship house a number of turrets that fire green blasts. They are the smaller anti- aircraft cannons for blasting small starships out of the sky. These turrets are not activated until the smaller craft emerge from the wreckage of the Halberd.
The main cannon of the Gunship comprises almost half of the vessel. In a massive explosion, it fires a chaotic purple beam that replicates the effects of a Subspace Bomb upon impact. Prior to firing, conduits around the barrel glow with purple light. The blasts are powerful and are said to be capable of 'infinitely rending space,' but is unknown how long the Gunship must recharge in the interim of said blasts because the Gunship only uses this cannon a single time before it is attacked by Kirby, who rode in on the Dragoon and damaged it so severely that it was destroyed in a single blow.
Role In Adventure Mode: The Subspace Emissary
In the cutscene The Great Invasion in Adventure Mode: The Subspace Emissary, the Gunship emerges from Subspace and Ganondorf and Bowser test its power on an arbitrary area of water. Ganondorf notices a gleam of light on the horizon; the camera zooms to reveal that the Halberd is heading for the Gunship. Ganondorf waves his arm and five cannons rise from the Gunship's front end and begin firing orange blasts at the battleship. The Halberd activates its auxilary engines and scoots under the hail of fire. Ultimately, a blast hits true and penetrates the Halberd from bow to aft. Another shot hits the port side by the center of the ship, causing it to split in half and explode violently. The Halberd begins to fragment into pieces and begins falling into the ocean before exploding violently. Heralded by the Super Smash Bros. Brawl Main Theme, four smaller ships (The Falcon Flyer, one Arwing, Samus's spacecraft and Olimar's Hocotate Ship) emerge from the Halberd's explosion and press onward. The rear cannons are activated, and the small craft skillfully weave and evade heavy flak amidst a storm of lasers. A gleam becomes visible in the distance; the camera zooms to reveal it is Kirby on the Dragoon. Kirby speeds the Dragoon and flies directly through a weak, skinnier portion of the Subspace Gunship. The Dragoon's aim is true and the ship starts exploding. Realizing the battle is lost, Ganondorf and Bowser step back into Subspace as the Theme transitions into a mournful tone. The four smaller ships and the Dragoon pursue them into the darkness. A last shot of the fragmented, falling craft is shown.
The Subspace Battleship is a large battleship (even larger then the Halberd) with many laser turrets and a giant cannon with the power of a Subspace Bomb.
Ganondorf made the Subspace Bomb factory self-destruct in order to draw this ultimate weapon out from Subspace. It's capable of infinitely rending space, and its firepower is greater than that of any weapon. It exists to draw all of this world into Subspace, but the last-ditch efforts of the fighters might prevent this.
- Super Smash Bros. Brawl, 2008