Super Galaxy Gurren Lagann

""Our friends' hopes and dreams are etched into its body, transforming the infinite darkness into light! Unmatched in Heaven and Earth, one machine equal to the gods!" "SUPER GALAXY GURREN LAGANN!" "We're gonna show you the power... of the human race.""

- Simon

The Super Galaxy Gurren Lagann (超銀河グレンラガン, Chōginga Guren Ragan), christened by Simon, is a colossal battleship-type Gunmen akin to the Arc-Gurren which first appeared in the prologue of the first episode before being formally introduced near the end of the third part of the series. It is the transformed version of the Spiral flagship Super Galaxy Dai-Gurren (超銀河ダイグレン, Chōginga Daiguren).

History
Originally, it was called the Cathedral Terra and it was Lordgenome's flagship against the Anti-Spirals in the past until Lordgenome was turned to the will of the enemy and was made King of Earth. It then assumed the form of the moon, acting as a sentry to report any Spiral activity on Earth.

This was until the climactic battle during Antispiral's attack on the Arc-Gurren. The Cathedral Terra reveals its true identity and attacks the Spirals. After Simon defeats and reclaims it for the Spirals and Team Dai-Gurren, it becomes their flagship for the final part of the series on their crusade to defeat Antispiral and save Nia, and from that point onward. Because of its size, the people on board use transportation technology to move around the ship. Its combat abilities are unparalleled by any other battleship-type mecha in the series, sporting an enormous array of missiles, beam weapons and shielding capabilities. It also has the capability to transverse to other worlds and universes and has the manufacturing capabilities to create hundreds of Arc-Gurren Lagann -sized mecha in a small period of time.

During the final battle with Antispiral, when dealing with larger Ashtanga, Simon channeled enough Spiral Power, with aid from the Spiral Power of those who came before him and initiated transforming the battleship into a humanoid shape and wiped out the opposition. This Gunmen was named by him, the Transcendent Super Spiral Dreadnought Gunmen: Super Galaxy Gurren Lagann (超銀河グレンラガン, Chōginga Guren Ragan).

The Super Galaxy Gurren Lagann is about half the size of Earth. It is piloted by a cascading control interface. The system goes as such: Simon pilots the Gurren Lagann, which is in turn pilots the Arc-Gurren Lagann, mimicking his moves, which controls the Super Galaxy Gurren Lagann.

Similar to the Gurren Lagann itself, the Super Galaxy Gurren Lagann sports a colossal pair of sunglasses on its torso materialized during transformation along with a smaller pair for the head, both of which can be used to fuse with each other.

The sheer size of this mech allows for the channeling of greater quantities of Spiral Power, so much so that Lordgenome compared its potential power to rival the micro cosmos. Like the Gurren Lagann, it has the power to create drills from many points on its body at once, and even uses a planetary version of its signature Giga Drill Break attack; the Super Galaxy Giga Drill Break. Additionally, the mech is equipped with thousands of cannons that appear via pilot's command, from the treads of the mech's drills (and, in some cases, within the treads of those cannons, which resembled drills). The Mega Vortex Maelstrom Cannon is capable of shooting a myriad of beams throughout every possible space-time and dimension in the near past and near future simultaneously.

In Gurren Lagann Parallel Works episode 8, which focused on Lordgenome's era as a Spiral Warrior, it is shown how he used the Cathedral Terra in Gunmen mode to wipe out the human race. Though it resembled the Super Galaxy Gurren Lagann, it lacked the star sunglasses and generally resembled Lazengann. It was piloted by Lazengann inside the Dekabutsu rather than the Gurren Lagann inside the Arc-Gurren Lagann. While in battleship mode, Cathedral Terra's abilities are even more destructive, able to take down several Ashtanga units and their escorts in a single blast of its mighty cannon, albeit with help from the surrounding ships. Also, it appears that the Cathedral Terra is a unique ship in the Spiral Warriors' arsenal, as no other ships of this class are ever seen. In 8, Lordgenome also demonstrated his ability to use a Giga Drill Break with Cathedral Lazengann, hinting that this attack is an innate skill of all Spiral beings, rather than a "killing blow" of any particular individual as previously thought.

Abilities
It's battleship form, Super Galaxy Dai-Gurren, transformed into Super Galaxy Gurren Lagann after Simon absorbed the power of the Galactic Spiral Abyss and Kittan's own tremendous Spiral Power before combining it with his own. It was capable of annihilating two Ashtanga battle ships in one hit. Super Galaxy also possessed amazing weapons such as the Mega Vortex Maelstrom Cannon which fires probability fluctuating bullets, which hit every possible space-time and dimension. The capacity to traverse through different dimensions, and as weapons it has its Glasscutter that it can launch as a boomerang.

Trivia

 * In Childhood's End and in Parallel Works part 8, Super Galaxy Dai-Gurren (then Cathedral Terra) is shown to be able to transform into humanoid mode, creating Cathedral Lazengann.
 * Super Galaxy Gurren Lagann rising out of the dark sea with its arms crossed is a reference to Gunbuster, which itself was a reference to Getter Robo G.
 * The glasses on Super Galaxy Gurren Lagann's face appear similar to those of Shin Dragon's 2nd form in Getter Robo: Armageddon.
 * Similarly, the sunglasses on its torso are similar to (and have the same primary function as) the Boomerang on Great Mazinger's chest.