Kidou Keiji Jiban aired in Japan from 1989 to 1990 as part of Toei's Metal Hero Series. The show followed Naoto Tamura, a police officer revived as a cyborg inspector who fought the criminal organization Bioron. Its opening theme, sung by Akira Kushida, became closely linked to the series and later circulated widely outside Japan, especially in Brazil where the series was dubbed and rebroadcast. Online, the music survived through tokusatsu fan edits, nostalgia compilations and meme videos celebrating classic Japanese hero shows.