Kyodai Hero (巨大ヒーロー, Kyodai Hīrō, "Giant Hero") is a subgenre in tokusatsu that involves Japanese superheroes or robots with the ability to grow to immense heights to fight giant monsters. The Kyodai Hero is the mainstream superhero genre that is widely popular in Japan. The first and most famous Kyodai hero is Ultraman who made his debut in 1966.

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