Zero System
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The ZERO (Zoning & Emotional Range Omitted) System is a technology for interfacing the brain of the pilot with the mobile suit's computer (comparable to the Universal Century's biocomputer in the F91 Gundam). Only two known mobile suits were ever equipped with this system, the XXXG-00W0 Wing Gundam Zero and the OZ-13MS Gundam Epyon. The ZERO system decreases the pilot's reaction times as there is no need for traditional visual interfaces. Furthermore, thanks to the advanced computations performed by the computer, the pilot can become aware of future outcomes and possible courses of action that can be taken to achieve total victory or total defeat. However, due to this direct brain interface, as the human brain cannot process the raw data, the system will cause the pilot to vividly "hallucinate" the possible paths that the pilot can take; as the pilot tries to figure out what is going on, the system can overload the brain with too many statistics and estimated values, causing temporary insanity. Examples of this include when Quatre Raberba Winner used the Wing Zero and went on a rampage throughout the colonies, and when Heero Yuy first used the Epyon in battle and went berserk, killing every soldier on both sides. However by the end of the series both Heero and Zechs "master" the ZERO system allowing them to properly use the data that the system gives them.
Later during the White Fang conflict, Gundam pilot Heero Yuy and White Fang leader Zechs Merquise developed a modified version of the ZERO system that was derived from their respective Gundams. They were given to Gundam pilot Quatre Raberba Winner and White Fang supporter Dorothy Catalonia so that they could lead their respective forces with their maximum potential strategic abilities. Heero installed his into Quatre's XXXG-01SR Gundam Sandrock (which Quatre would later remove) and Zechs developed his into a helmet for Dorothy to use to control and coordinate the movements of mobile dolls in combat from inside the battleship Libra.
