Performance ability levels:
fighting 100; weapons 110; speed 150; power 130; armor 120
Equipment and design features:
head-mounted sensors; self-destruct system
1 x dober gun, clip-fed, mounted on right shoulder; 2 x beam saber, stored in recharge racks in shield, hand-carried in use, shield, optional mount on left shoulder
It was in the year After Colony 175 when OZ, an affiliate of the Romefeller Foundation, was charged with designing and building the first combat-capable mobile suit of that Era. The results exceeded all expectations, as the OZ-00MS Tallgeese proved so powerful that no ordinary pilot could handle it. Although equipped with a pair of beam sabers and a shell-firing "dobergun," the Tallgeese's biggest advantage was its size and speed. Being a large and heavy mobile suit, it required an enormous amount of thrust for jumping and maneuvering. However, its designers equipped it with a tremendous vernier rocket system that gave it enough thrust to maintain flight on its own - over three times the acceleration of OZ's later air combat model mobile suit, the OZ-07AMS Aires. However, the sheer stress and G-forces placed upon the pilot made the Tallgeese too much of a "wild horse" for anyone to handle, and the mobile suit was disassembled and put into storage, ostensibly to serve as a "museum piece." Although the five scientists who designed the Tallgeese left OZ to follow other pursuits after colony leader Heero Yuy's assassination, OZ began full-scale mobile suit production, using the Tallgeese as the basis for its smaller, less-powerful OZ-06MS Leo units. It wasn't until twenty years later that the Tallgeese would resurface when OZ pilot Zechs Merquise, desparate to find a weapon capable of helping him take on those same scientists' powerful Gundam mobile suits, would bring the Tallgeese out of mothballs and make it operational again. Despite the physical punishment, Zechs would become the only pilot to master the prototype mobile suit, making it his personal unit through most of the fighting and political strife that occured in AC 195.