MSZ-006 Z Gundam (MSZ-006 Ζガンダム) is one of the products listed within A.E.U.G's Mobile Suit plan, Project Z. The "Z" stands for the Greek letter, Zeta (ζ in lowercase). Since this Gundam is the third unit built after "Gamma Gundam", it received the codename Zeta Gundam. Due to its predecessor, Gundam MK-II, being used by the Titans, the A.E.U.G hastened their plans to create a stronger version with a movable frame. Production for the unit was sluggish until Kamille suggested the idea of combining a transformation with a Flying Armor -prototype flying unit for MS to ride. Thus, Z Gundam's development reached a speedy completion.