Originally called the Dai-Gunzan while under the command of Thymilph, one of Lordgenome's four generals, it is essentially a walking battleship hundreds of times larger than conventional Gunmen, with numerous heavy artillery gun turrets and heavy armor. The arms attached to the control tower serves as the hangar bay launchers for its housed Gunmen. After its infiltration and acquisition by Simon, it is renamed the "Dai-Gurren" (although still referred to by its original name by the Beastmen) and remodeled to accommodate the Brigade members.