Technology & Combat Characteristics
Three plans were drafted by the Principality of Zeon in order to combat the Earth Federation's Luna Titanium Alloy. The third and least viable of these plans was the creation of a mobile suit so advanced that it would turn the tide of the war on its own. This was deemed impractical and discarded by Zeon's leadership. However, unknown to most, Dr. Q, the one who proposed this plan, went ahead with it on his own initiative, eventually resulting in the creation of the Perfect Zaku years after the end of the One Year War.
The Perfect Zaku is equipped with a magnetic field which surrounded it with a high density beam dispersal fog, rending it immune to beam weaponry while simultaneously hiding the mobile suit's appearance. In order to fight within this fog, it also has 3 beam cannons mounted on its right arm which can extend outside of the beam dispersal fog in order to avoid having the beam dispersed by it.
History
During the later stages of the One Year War, the Principality of Zeon created multiple plans for the next generation of mobile suit development in order to combat the Earth Federation's Gundam and it's Luna Titanium armor. Plan A was the mass production of beam capable MS which resulted in the development of suits such as the Gelgoog and Gyan. Plan B was to create suits that could overwhelm their enemies through the sheer amounts of solid state rounds being used, resulting in the Zaku Full Bullet. Plan C was to develop a singular high-capability mobile suit that could single-handedly change the tide of the war.
Plan A was approved as the main plan as well as Plan B just in-case Plan A couldn't be finished in time. Plan C on the other hand was rejected outright. The production of the Plan C MS would require 100 of each part to be made so that the best part of each batch could be used on the MS. As a result, Plan C was deemed to be too costly for the already weakened Principality to go through with. However the one who proposed Plan C, Dr.Q, went behind the back of the brass and continued the suit's development in secret.
Plan C would be completed in the year U.C. 0082 and would be dubbed as Perfect Zaku. Dr.Q would pilot his creation in an attempt to destroy the Republic of Zeon, having become wrathful towards his own country after their loss at the end of the One Year War.
During the Perfect Zaku's attack on Side 3, it easily annihilated a large number of Federation mobile suits using it's large back mounted mega-particle cannon. Shortly there after it would rip a Heavy Gundam to pieces. Dr.Q would have succeeded in destroying the Republic of Zeon if not for the arrival of Johnny Ridden and Shin Matsunaga who had discovered a way to temporarily dispel the Perfect Zaku's beam dispersal fog, rendering it temporarily vulnerable to a point-blank beam rifle shot directly to the chest.