Mazinger Z English Subbed Mazinger Z is an enormous super robot, constructed with a fictitious metal called Super-Alloy Z, which is forged from a new element (Japanium) mined from a reservoir found only in the sediment of Mt. Fuji, in Japan. The mecha was built by Professor Juzo Kabuto as a secret weapon against the forces of evil, represented in the series by the Mechanical Beasts of Dr. Hell. The latter was the German member of a Japanese archeological team, which discovered ruins of a lost pre-Grecian civilization on an island named Bardos; the civilization was loosely based on the ancient Mycenae, and was called the Mycéne Empire in the series.