Baron Ashura's mechanical beasts continue to wreak havoc in Tokyo, Osaka and Nagoya, forcing the Robot Corps sortie to defeat them. However, their machines prove to be ineffective at fighting the mechanical beasts. Kouji remains at the Kurogane House, knowing that if he left to help them then the Photon Power Labs would be left open to attack. While he waits, three assassin androids - the Gamia Sisters - arrive at the Kurogane House to kill Kouji. But before they can complete their mission, they are stopped by the Kurogane Five who are revealed to have special abilities and weapons. Cross is a cyborg made from Super Alloy Z, Sensei has a Super Alloy Z katana, Yasu's body contains a Photon Power Bomb, Kikunosuke can move at super speeds and had Super Alloy Z razor wire, and Django has special Super Alloy Z bullets. While they are fighting the Gamia sisters, Kouji steals the Pilder and prepares to dock with Mazinger Z - determined to defeat the attacking mechanical beasts.
Ayumi Fujimura
Shiro Kabuto
Kenji Akabane
Kouji Kabuto
Kazuhiko Kishino
Dr. Hell (voice)
Atsushi Imaruoka
Ankokuji Keiji
Fumihiro Awano
Tetsuya Tsurugi
Hiroshi Naka
Yanosuke Yumi
Kaori Yamagata
Baron Ashura
Kenji Utsumi
Emperor of Darkness
Masaaki Yajima
Zeus
Masayuki Katou
Yasu the Weasel
Minoru Inaba
Count Blocken
Satsuki Yukino
Gamia Q
Seiko Tomoe
Kikunosuke
Tessyo Genda
Cross
Youko Honda
Sayaka Yumi
Miyuki Ichijou
Tsubasa Nishikiori (voice)
Taimei Suzuki
Jūzō Kabuto