A giant sea monster known as Dragonsaurus has emerged from out of nowhere, terrorizing the depths of the oceans. Great Mazinger, Grendizer and the Getter Robo G team join forces…

Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger…

During a Christmas Eve in Tokyo, three homeless people, middle-aged alcoholic Gin, former drag queen Hana, and dependent runaway girl Miyuki, discover an abandoned newborn while looking through the garbage….