Movie
FEATURE FILM
Released
UFO Robot Grendizer vs. Great Mazinger
Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered. When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.
Where to Watch
No streaming or digital rental offers currently listed in US. Switch region above to check other catalogs.
Availability data provided by JustWatch via TMDB
Billed Cast
Kei Tomiyama
Duke Fleed / Daisuke Umon
Joji Yanami
Dr. Umon
Hiroya Ishimaru
Kouji Kabuto
Chiyoko Kawashima
Hikaru Makiba
Kazuko Sawada
Goro Makiba
Kenichi Ogata
Blacky
Kosei Tomita
Gandal Shirei
Keiichi Noda
Tsurugi Tetsuya
Spoiler-Safe Screening Room
Premiere Discussions & Theories 0
Share reactions, easter eggs, and fan theories with automatic click-to-reveal spoiler shields.
Join the Screening Room
Sign in to post episode reactions, fan theories, and upvote community dispatches.
Loading discussion thread...
Audience Ledger
Community Micro-Reviews
Concise 1-sentence dispatches from DidItDrop members.
No micro-reviews yet — rate 1–4★ above and log the first 1-sentence take.
Double Feature
More Like This
Recommended titles paired with UFO Robot Grendizer vs. Great Mazinger.
