Toei made Rainbow Sentai Robin based on a single volume of manga by Shotaro Ishinomori, the creator of Cyborg 009, and ran for 48 episodes. Hayao Miyazaki did key animation for two of those episodes, and the series saw a Japanese dvd release in 2015.
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| Rainbow Sentai Robin title card |
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Sentai, often color coded heroes fighting rubber costume monsters, is a sub section of Tokusatsu, live action films and shows like Godzilla and Ultraman. While costumed heroes pre-date Robin, the first Sentai team series didn't premier until 1975. While Robin does consist of a team with a token girl, and the color art that exists for this black and white series does color code the characters, the majority of the cast are robots of varying designs.

The half earthling, half alien Robin fights evil aliens from his father's homeworld with his father's robots; a shapeshifting gunslinger, a healing nurse who can also repair robots, a tetsujin-28 looking strong man, his transforming spaceship, a robotic cat, and the Professor. The series is happy to reuse animation, including reversing it, but there are many moments of quality action with some sets being built on a couple of layers for a more lived in scene. I particularly enjoyed this camera effect used in the background of the villain speaking to his boss which I don't believe I've seen before. This series also had an eyecatch!
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Oil slick-like effect
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The series did have less than fantastic moments, like a man falling down as if he will crash while in space, and the third episode does depict native Africans (no country specified) in a very stereotypical way. Positive side- one of the villains did turn into a tree with a gun, and I enjoyed that.
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Give trees guns
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Sentai fans and Ishinomori fans should absolutely give this a watch, and Miyazaki fans could certainly find worse series to watch.