Designed by the five scientists, the Tallgeese was the first armed mobile suit, and is the common ancestor of both the Gundams (specifically their prototype, the XXXG-00W0 Wing Gundam Zero) and the mass-produced military mobile suits (most notably the OZ-06MS Leo and its variants).

• The EW version of the Tallgeese , which boasts the strongest destructive power in OZ, has been made into an MG.
• Renewal appearance designed by Hajime Katoki. The markings are also drawn by Katoki.
• Elaborate internal structure that only be produced in MG scale.
• Reproduce the deployment of the back thrusters and leg thrusters.
• Dover gun the reproduces blowback mechanic is also included.