The H.C.M. Perfect Gundam appeared in the last chapter of HobbyTopia. Is the ultimate Gundam that brings together the strength of the High Complete Model and Shiro's plastic model experience. It is a RX-78-2 Gundam equipped with sturdy armor with a frame structure with metal ribs inside the armor, but the heavy armor impairs maneuverability.
The armor can be attached and detached by igniting the gunpowder for the model gun , and the normal Gundam inside is a super action model that has increased the movable part and movable range to the limit. It was used as a normal Gundam in the Zeong battle that followed because the armor was removed to counter the opponent's mobility in the battle against The O. At the end, the torso was crushed by Zeong, but the last trump card "Drill Fighter" built into the abdomen stabbed the stop. Designed by Kazumi Fujita .