Kamen Rider is a long-running Japanese tokusatsu franchise that began in 1971, with Kamen Rider 1 as its first hero and the Kaijin as the monstrous enemies he fought. The term Kaijin is used across the franchise for these creatures, which is why the name remains familiar to fans of retro Japanese hero shows. Short clips like this one circulate on soundboards and in fan edits, where they are reused as shorthand for a monster appearance or an old-school showdown, keeping the original series present in modern meme and editing culture.