G3 Gas

G3 Gas, also known as "GG Gas" is a potent and fast-acting chemical weapon used by the Principality Of Zeon during the One Week War up until The Antarctic Treaty and was one of the leading causes of civilian casulties during the One Year War. It was later appropriated and used by the Titans.

Initially, the G3 would be delivered by a single MS-05 Zaku I which would burst through the side of a colony before firing off one of the missiles from the weapon pictured that contained its deadly payload. One or two of these missiles from a single Zaku appeared to be enough to eliminate the population of an entire colony except for those people protected within a vacuum-sealed space suit, making the weapon highly effective and requiring littl manpower to deliver. Ensign Shiro Amada was within a suit and witnessed the horrors the gas caused. Amuro Ray witnessed the lingering aftereffects of the gas later in the war on a devastated colony.

The gas is fast-acting and can kill within seconds, causing rapid loss of motor control and skin to slough off of those who are close to the site of dispersal. To those further away, death also came quickly and seemed to be in such a way that the people did not realize what was happening and died doing whatever they previously had been doing before the attacks.

The effects of the gas were so hideous that it was banned from use at The Antarctic Treaty.