Mazinger Z vs The Great Dark General

Name: Mazinger Z vs The Great Dark General
Genre: Animation, Action, Adventure
Released: 1974-07-25
Rating: 3.72
Cast: Hiroya Ishimaru, Ryoichi Tanaka, Kazuko Sawada, Chikao Ohtsuka, Hiroshi Ôtake

Deep beneath the earth, seven robots lay dormant: a human, a mammal, a bird, a fish, an insect, a reptile, a ghost... and the Great General of Darkness.

Summary

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.