UFO Robot Grendizer Season 1 Episode 30 The Lightning Rock 1975
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A strange rock full of radiation energy lands on Earth and Dr. Umon can't make much of this new phenomenon. At the same time, the Vegans discover this strong source of energy and put it to use in their next saucer beast.
Released: 1976-04-25
Runtime: 25 minutes
Genre: Action & Adventure, Animation, Sci-Fi & Fantasy