A
line of mobile suits produced by Zeon toward the end of the the One Year
War. The Gelgoog outclassed most mobile suits of the
time, and some of its later variations, produced in extremely
small numbers shortly before Zeon's defeat at A Baoa Qu, were even stronger (variants such as the Gelgoog Jaeger, High Mobility Type, Marine, etc.).
Some argue that if the Gelgoog had been produced earlier in the conflict, Zeon would have been victorious, however the Gelgoog was simply too little, too late.