Dynamic Super Robots Soushingekki

Aphrodite A is overwhelmed when forces connected to the Mycenae and Hyakki empires launch a massive assault. The danger quickly exceeds what one robot can survive, drawing Mazinger Z, Great Mazinger, Getter Robo G, and other legendary machines into the same battlefield.

Each new wave of enemies brings another ally, until robots from separate conflicts stand together against a threat large enough to demand all of them. As even greater foes appear, the combined force escalates from a rescue into an all-out super-robot counterattack.