Nazo no robotto Mineruba X
- Episode aired Aug 19, 1973
Dr. Hell implements the Minerva X project, conceived by Professor Kabuto as a partner of Mazinger ZDr. Hell implements the Minerva X project, conceived by Professor Kabuto as a partner of Mazinger ZDr. Hell implements the Minerva X project, conceived by Professor Kabuto as a partner of Mazinger Z