過去，因為企圖征服世界的邪惡天才科學家Dr.地獄，而使人類陷入了滅亡的危機。 但由於兜甲兒駕駛著被稱為"鋼鐵之城"的超級機器人"魔神Z"，以及他的夥伴們的努力，才得以恢復和平。 而在那世界之戰的十年後― 不再當機器人駕駛，而改當科學家的兜甲兒，某日在富士山地底見到了，被埋在該處的超據大遺跡INFINITY，以及同時出現的神秘生命體．莉莎。此外，就在同時Dr.地獄也神秘的復活了。而Dr.地獄他打算利用INIFITY所潛藏的無限可能性，去完成他過去抱持的野心。 在這有史以來最大的危機、在千鈞一髮的緊要關頭中，傳說中的駕駛員將與魔神Z一同再次挺身而出。在這有史以來最大的危機、在千鈞一髮的緊要關頭中，傳說中的駕駛員將與魔神Z一同再次挺身而出。
Mazinkaiser vs the Great general of darkness is a retelling of 1974's Mazinger Z vs. The Great General of Darkness. The new Mazinger Team is overwhelmed by the surprise assault of the subterranean Mykene empire resulting in many casualties, but Mazinkaiser ultimately defeats the forces of evil, ending with a bitter duel against the leader of Mykene, the Great General of Darkness.
Mazinger Z vs. Devilman is a 1973 animated movie that crossed over two then-popular Anime series, both of which were created by Manga artist Go Nagai. While fighting with some of his enemies Mazinger Z inadvertently knocks them into a volcano, where they crash into the prison of the Satan race and release Phoenix Jenny! Dr. Hell, learning of this, frees the rest of the Satan race and teams up with them to defeat Mazinger Z, and their ability to fly proves to be too much for our hero. Meanwhile, Devilman is also individually fighting the members of the Satan race, but their combined power is too much for him as well; can Mazinger and Devilman put aside their differences and team up to defeat Dr. Hell and the Satan race?
Kouji and his friends have defeated Dr. Hell and are now enjoying a break, but suddenly a strange prophet appears and warns everyone of an oncoming danger, mechanical beasts never seen before start appearing all around the world wrecking havoc. Its up to Kouji and his Mazinger Z to stand up to this threat but it seems he is vastly outnumber and outmatched.
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 to combat the new threat. But their task becomes more complicated when Dragonsaurus swallows up Boss Borot and makes its way towards Tokyo. Source: ANN
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 is recovered. When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.
電影舞台設定在2003年，年輕職員土井航（高杉真宙 飾演）某天因為宣傳組長（小木博明 飾演）建議利用現有技術和材料，把日本經典動畫《無敵鐵金剛》出現的格納庫（地下倉庫）在現實中建造出來，於是他開始和公司內外各方技術人員合作，一起挑戰這個奇幻聽似不可能的任務…... 故事以實際存在的「前田建設工業株式會社」的「奇幻營業部」為藍本，該部門對於動漫世界中的建築可否實際操作進行實驗，並把驗證過程放上網路連載，電影就改編自他們的連載。
When a UFO arrives from space and attacks the Getter Institute, Getter Robo is launched to stop it; but the might of the UFO and its giant space monsters prove to be too much for the Getter team. Not only is Getter Robo defeated, but Ouishan is killed in action! With Getter Robo out of commission, the world's only hope appears to be Great Mazinger, but the aliens' power might also be too much for even him. Can Dr. Saotome build a new Getter Robo in time to help save Great Mazinger, Japan, and the entire world?
When an UFO delivers a metal-eating monster to the heart of Japan, Getter Robo and Mazinger Z are launched to combat the alien menace. Fighting individually, the space monster's metal-eating and acid-spitting abilities prove too much for Japan's super robot forces - only their combined might stands a chance against defeating it! But with Mazinger Z damaged, can Getter Robo defend against the monster long enough for its comrade to be repaired? And even with forces combined, can they defeat the monster before all of Japan is destroyed?
An edited version of the first few episodes of the classic Japanese series, this introduces the characters of Koji, Dr Hell, Baron Ashura (freaky man/woman baddie) and of course, Mazinger Z.