Kyodai Hero
1960s. The inception of the Kyodai hero genre initially began with Godzilla in the film "Ghidorah, the Three-Headed Monster". Godzilla is portrayed as a personified natural disaster at first but over the course of the film franchise's many monster battles, he is gradually put into the position of protector of the human race, a key trope of the Kyodai Hero genre. Though Godzilla established the minor concept of the Kyodai Hero, the genre technically began with P-Productions' live action adaptation of Osamu Tezuka's "Ambassador Magma" which predated the popular "Ultraman" franchise, by six days . "Ultraman" was created by the "Godzilla" films' Special Effects Director and Supervisor Eiji Tsuburaya. "Ultraman" - a sequel series to the previous Tokusatsu kaiju series "Ultra Q" - quickly became very popular in its initial run, to the point that Tsuburaya Productions produced sequel show "Ultraseven", the second Kyodai Hero show ever produced - this series introduced another trope characteristic of the genre, in that the hero mainly fought aliens and their monster subordinates throughout the show. "Ultraseven" was the last Tokusatsu Kyodai hero show Eiji Tsuburaya ever produced - he dies in 1970. Since then, the increase in "Ultraman"'s popularity was so  great that Tsuburaya Productions decided to revive the franchise in 1970 with "The Return of Ultraman", thus creating a series of Ultraman shows which continues to the present day, referred to as the "Ultra Series". 1970s. The 70s saw the uprising of Tokusatsu and Kyodai hero shows, which coexisted with and helped shape kaiju films of the era. Tsuburaya Productions restarted the "Ultraman" series with "The Return of Ultraman". This reignited high interest in studios to produce their own tokusatsu shows. Many of the tokusatsu shows from the 70s era mainly featured Kyodai heroes such as Spectreman and "Super Robot  Red Baron". By 1975, Tokusatsu shows were highly popular in Asia. Toho Studios even invented its own Kyodai hero to fight alongside Godzilla, Jet Jaguar in the film Godzilla vs. Megalon, and introduced numerous other Tokusatsu heroes throughout the 1970's, including Godman, Megaloman and Greenman. In Hong Kong, Shaw Brothers Studio produced its own Henshin/Kyodai hero as well with The Super Inframan. Though stylistically more akin to Kamen Rider, Inframan mixed Kyodai Hero elements into its formula, allowing the titular hero to grow to gigantic size. Style & techniques. The Kyodai Hero genre usually involves a human (either a  host to the hero, or simply a human form) who transforms into the eponymous hero, usually an organic cyborg, android, or robot, and changes to an enormous size to battle a giant monster or aliens. The special effect techniques usually use suitmation and scale models.