This advanced mobile suit was created by a resistance group at the L1 colony cluster for the sole purpose of battling Oz. The Wing Gundam can transform into a winged "bird mode" superior to any conventional fighter plane; in this form, it can survive re-entry and fly in Earth's atmosphere. Its primary weapon is the buster rifle, an immensely powerful beam weapon which can be fired only three times before its energy supply must be recharged. For close-range combat, the Wing Gundam relies on its shoulder-mounted machine cannons and the beam sabers stored in its shield

Designed fifteen years ago - but never actually constructed - by the same scientists who sent the five Gundams to Earth, this immensely powerful mobile suit is the ancestor of all the Gundams. Whereas the five later Gundams were made for use on Earth, the Wing Gundam Zero is designed for space combat. It can transform into a "neo bird mode," and is armed with a twin buster rifle more than twice as powerful as that of the Wing Gundam. With its superb performance and immense firepower, this antique design would surely be the ultimate Gundam... were it ever built.

The very first Gundam, originally designed 16 years ago, is more powerful than any of the five that were created for Operation Meteor. The Wing Zero's most powerful and dangerous feature is the Zero System, a control interface that feeds tactical data and combat simulations directly into the pilot's mind; Heero Yuy is one of the few pilots capable of handling this system. Also noteworthy is its primary weapon, the devastating twin buster rifle. As depicted in Endless Waltz, the Wing Zero lacks its "neo bird mode" transformation, but gains a set of feathered wings that enable it to survive re-entry and glide through the atmosphere.