Autonomous Republic of Zeon:
Mobile Worker MW-01 Model 01
Early Type
Overall height: 16.7m / Head height: 13.88m / Overall width: 14.6m

An early test version of the humanoid mobile weapon whose development and data collection is under way at the Dark Colony, for use by the Autonomous Republic of Zeon in the event of a war of independence. As per the cover story that this is a humanoid worker machine used for development and construction on the lunar surface, it has been given the name "mobile worker." Lacking the refined style of a military weapon, it has the crude features typical of a worker machine, with an exposed cockpit as well as winches and lights mounted on its exterior. The claw on its right hand, which appears to be meant for demolition work, increases its offensive strength. Its left arm is equipped with a bulletproof shield. When combat tests are conducted against the Guntank Early Type, this machine demonstrates dramatic new potential as a next-generation humanoid mobile weapon. The "mono-eye," a one-eyed movable camera, has been adopted as its head sensor. Due to technical issues, the fusion reactor on its back that serves as a power source is very large, which limits its mobility and maneuverability. Miniaturizing the fusion reactor will be a focus of the machine's future development.

Autonomous Republic of Zeon:
Mobile Worker MW-01 Model 01
Late Type (Mash)
Overall height: 16.7m / Head height: 13.88m / Overall width: 14.6m

An improved version of the Mobile Worker Model 01 Early Type that the Autonomous Republic of Zeon has been developing. In order to gather data on close-range melee combat, the design of the cockpit area has been modified to protect the pilot. Another improvement is that the forearm attachments can be exchanged to serve different functions, and as well as equipping both arms with manipulators, it is also possible to replace them with various specialized working parts. In addition to minor design changes, it has also undergone improvements for attitude control testing in space. But since its basic structure is not greatly changed from the early type, issues such as miniaturizing the fusion reactor still remain. The machine's coloring has been changed for melee testing, and the one piloted by Mash has been painted orange.

Autonomous Republic of Zeon:
Mobile Worker MW-01 Model 01)
Late Type (Ramba)
Overall height: 16.7m / Head height: 13.88m / Overall width: 14.6m

An improved version of the Mobile Worker Model 01, piloted by Ramba Ral. It is used to gather data on factors such as the structural damage and joint stress to which the mobile worker is subjected during melee testing. In order to collect data during mock battles between mobile workers of the same type, the two late type machines have been painted in different colors to make it easier to tell them apart by sight. The machine used by Ramba Ral, who is participating in these experiments as a test pilot, is painted blue. Aside from the difference in coloring, however, it is essentially identical to Mash's machine.