XXXG-01S2 Altron Gundam

History
When the XXXG-01S Shenlong Gundam was captured and destroyed by OZ's forces in AC 195, the extremely durable gundanium-made remains of that mobile suit were taken to OZ's lunar base and mobile suit factory for storage. The five scientists who had built the Gundams plaguing OZ were also at the lunar base, captured and forced to develop new mobile suit technology to secure OZ's rule over Earth and the space colonies. Despite their apparent "cooperation," however, the scientists also began rebuilding the Shenlong in secret, preparing for the day when captured Gundam pilot Chang Wufei could return to the battlefield. That opportunity came when the Romefeller Foundation - the political force behind OZ - became split over a number of issues, and the "Treize Faction" of OZ attacked the lunar base, which at the time was still under the control of Romefeller loyalists. During the chaos, Wufei managed to escape, taking his rebuilt XXXG-01S2 Altron Gundam to continue fighting on his own. At that time, the Altron was only seventy percent complete; later repairs and field upgrades would allow Wufei to complete the resurrected mobile suit, bringing it up to its full combat potential.

The improvements given to the new XXXG-01S2 Altron Gundam were very dramatic. The old beam glaive was replaced with a double-ended twin beam trident, and both arms were outfitted with the highly effective "dragon fang" extending arms and claws (hence the Altron name, taken from the Chinese "ertou long" or "two-headed dragon"). Along with increased mobility, the Altron also mounted a pair of beam cannons on a "stinger tail," giving it effective ranged firepower for space combat (as well as being able to cover its rear). These upgrades turned the resurrected "Nataku" into an incredible force, allowing Wufei to continue his fight for justice against oppression.