Technology & Combat Characteristics
The Extreme Gundam is designed to store armaments in several armor packs to suit any combat situations. The unit's standard armaments includes: 2 beam sabers for close combat, and an Extreme Rifle for its primary ranged weapon which can be stored in a standard shield.
The Extreme Gundam has 4 standard Armor Packs, which equip to it and upgrades its own armaments depending on the combat situations: the Tachyon Phase Armor Pack, which gives the Extreme Gundam thick armor and powerful melee attacks through the use of a gigantic sword stored on the back of the suit and is capable of firing gigantic electric spheres; the Carnage Phase Armor Pack, which gives the unit long ranged attack capabilities through two large shoulder mounted cannons; the Ignis Phase Armor Pack, which make the MS capable of a 360 degree attack range with funnels; and the Mystic Phase Armor Pack, which is an all-purpose quadrupedal upgrade.
Initially, EX- designed another Armor Pack, the Dystopia Phase, but the Extreme Gundam was unable to handle the power of the Armor Pack and thus, the project was left unfinished. This was ultimately rectified when Ex Treme had the armor finished by having a successor unit to the original Extreme Gundam made to handle said power: The Extreme Gundam Mk-II AXE.
The head unit is unique as it contains different head formations for each of its armor packs. It is worth noting that the Ignis and Mystic Phases use the back of the head as a face, which gives it a somewhat feminine appearance, while the Carnage phase uses the same face as the Extreme Gundam without any armor packs, and in Tachyon Phase, the faceplate of the head is opened.
In Gundam EXA, Extreme Gundam can manifest itself in the virtual worlds of General Answer and allow EX- to dive into the world without stealing an available mobile suit. It also has extraordinary strength, with the power to destroy Operation Meteor Gundams such as XXXG-01SR Gundam Sandrock and XXXG-01S Shenlong Gundam with ease.
History
Two Extreme Gundams were built by an unknown origin and was designed for space travel. One of them is a pilot-less mobile suit, with a bodiless core named "EX-". The reason behind an AI pilot is because of the apparent shortage of human candidates.
Another unit, which is painted in Red falls is piloted by Leos Alloy in pursuit of AI pilot EX-.
According to EX-, its name is reference to it being extreme despair, for it represents the limits of evolution, and being proof that there is no hope for humanity of Gundam EXA's timeline. It's also extremely strong, and that invokes the despair in its enemies.
However this unit was destroyed after the final battle between the latter and Extreme Gundam Type Leos.