The MSZ-006 Zeta Gundam A.E.U.G. held the crown for a while with its size and extreme details. Furnished with an internal skeleton featuring pistons, sensor arrays, as well as LED-powered e07/1/2014 (CR1220 battery sold separately) and beam saber, the Zeta embodies the mechanical complexity and attention to detail embodied in the Perfect Grade line including its ability to transform from robot to a wave rider fighter mode.

Standards for the Perfect Grade line include fingers that have individual articulation, while actuators move in sync with arm and leg joints. Zeta features many opening hatches and swiveling components as if it were a real machine undergoing maintenance.

MSZ-006 Zeta Gundam is the featured in Mobile Suit Zeta Gundam and Mobile Suit Gundam ZZ tv series. The most famous of its pilots and also one of its principal designers is Kamille Bidan (the main protagonist in Mobile Suit Zeta Gundam series) in the Gryps Conflict.