Mazinkaiser: Shitou! Ankoku Dai Shogun

A race of subterranean beasts called the "Mikene" appear out of nowhere and indiscrimiately wreak havoc all over the world. Their goal: the death of Mazinkaiser pilot Kouji Kabuto. As these monstrous beings destroy cities and decimate the Mazinger Army, Kouji must race against time to once again pilot Mazinkaiser and defeat the Mikene and their feared leader Ankoku Daishogun.