This is an MG series plastic model of the Acguy that appears in "Mobile Suit Gundam". The arms use a mechanism that is the first in the history of plastic models, recreating the extension gimmick and movable elbow joint. The claw extension and storage gimmick on the right forearm is also reproduced, and the Vulcan cannon has a switch function and can be deployed by spring action. Parts can be attached to the torpedo on the left arm to express the firing scene. A display stand is included that allows you to recreate scenes of it moving underwater. Figures of the children who were on board the White Base, Katz, Letz, and Kikka, are included.