

UFO Robot Grendizer vs. Great Mazinger
1976, Japanese. Directed by Osamu Kasai.
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.
- Runtime
- 0h 24m
- Post-credits
- None listed
- Language
- Japanese
- Rated
- Check local
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Where to watch UFO Robot Grendizer vs. Great Mazinger
UFO Robot Grendizer vs. Great Mazinger isn’t streaming on any OTT platform in India yet; it released on 20 March 1976.
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Part of a series
Dynamic Pro Super Robot: watch order
Cast & crew
Details
- Released
- 20 March 1976
- Original title
- UFOロボ グレンダイザー対グレートマジンガー
- Country
- Japan
- Written by
- Keisuke Fujikawa
Check ratings elsewhere
News & fan talk
Watch before UFO Robot Grendizer vs. Great Mazinger
In release order. The films it follows, and anything it builds on.

マジンガーZ
1973
NewEarlier in the series

Mazinger Z vs. Devilman
1973 · 5.6/10
NewEarlier in the series

Mazinger Z vs. Doctor Hell
1974 · 8.0/10
NewEarlier in the series

Mazinger Z vs The Great Dark General
1974 · 8.2/10
Absolute CinemaEarlier in the series

Getter Robo
1974 · 7.0/10
NewEarlier in the series

That's a UFO! The Flying Saucer
1975 · 5.2/10
NewEarlier in the series

Great Mazinger vs. Getter Robo
1975 · 5.8/10
NewEarlier in the series

Great Mazinger vs. Getter Robo G: The Great Space Encounter
1975 · 7.7/10
NewEarlier in the series

Battlefield of the Space Saucers
1975 · 6.3/10
NewEarlier in the series

UFO Robot Grendizer Theatrical Version
1975 · 7.0/10
NewEarlier in the series
After UFO Robot Grendizer vs. Great Mazinger
What comes next in the series.

Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster
1976 · 6.0/10
NewNext in the series

Shin Getter Robo vs Neo Getter Robo
2000 · 6.5/10
NewNext in the series

Mazinkaiser vs Great Darkness General
2003 · 6.0/10
NewNext in the series

Mazinkaizer SKL
2010 · 6.5/10
NewNext in the series

Mazinger Z: Infinity
2017 · 7.0/10
Worth the HypeNext in the series
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UFO Robot Grendizer vs. Great Mazinger: quick answers
What should I watch before UFO Robot Grendizer vs. Great Mazinger?
Watch Great Mazinger vs. Getter Robo (1975), Great Mazinger vs. Getter Robo G: The Great Space Encounter (1975), Battlefield of the Space Saucers (1975), and UFO Robot Grendizer Theatrical Version (1975) first, plus 6 earlier titles listed on this page.
What comes after UFO Robot Grendizer vs. Great Mazinger?
Next in the series: Grendizer, Getter Robo G, Great Mazinger: Decisive Battle! The Great Sea Monster (1976), Shin Getter Robo vs Neo Getter Robo (2000), and Mazinkaiser vs Great Darkness General (2003).
Is UFO Robot Grendizer vs. Great Mazinger worth watching?
UFO Robot Grendizer vs. Great Mazinger doesn’t have enough ratings for a verdict yet.
How long is UFO Robot Grendizer vs. Great Mazinger?
UFO Robot Grendizer vs. Great Mazinger runs 24 minutes (0h 24m).
Does UFO Robot Grendizer vs. Great Mazinger have a post-credits scene?
None is listed for UFO Robot Grendizer vs. Great Mazinger. Viewers tag these on TMDB, so a brand-new film may not be tagged yet.
UFO Robot Grendizer vs. Great Mazinger parents guide: is it suitable for kids?
No age rating is listed for UFO Robot Grendizer vs. Great Mazinger yet.
Which OTT platform is UFO Robot Grendizer vs. Great Mazinger on?
UFO Robot Grendizer vs. Great Mazinger isn’t streaming on any OTT platform in India yet; it released on 20 March 1976. (Checked 12 November 2026.)
What movies are like UFO Robot Grendizer vs. Great Mazinger?
If you liked UFO Robot Grendizer vs. Great Mazinger, try My Hero Academia: You're Next, Gurren Lagann The Movie: Childhood's End, The Venture Bros.: Radiant Is the Blood of the Baboon Heart.
Who directed UFO Robot Grendizer vs. Great Mazinger?
UFO Robot Grendizer vs. Great Mazinger (1976) was directed by Osamu Kasai and stars Kei Tomiyama, Joji Yanami, Hiroya Ishimaru.