He did not try to warn the world of what had happened in Bardos and what Hell was planning, opting for shutting himself away to build his super-weapon. In a final battle against Gordon Hell , the Mazinger is at a big disadvantage until the sixth Black Box activates and receives help from his fallen counterparts and their Mazinger Zs in order to use a barrage of Rocket Punches and finally, Dynamic Fire Nova to destroy it. The title of an episode is "Shiro misses his mother" at least in the Latin dubbing. She was right. One day I shall purge all of you off this world!
nest...