Y'ur Height Only (1981)

Mr. Giant has kidnapped the brilliant Dr. Van Kohler and is planning to use the Doctor's invention, the N-bomb, to hold the world hostage. The only one who can foil Mr. Giant's evil scheme is Agent 00, a 3-foot-tall filipino martial arts master, expert marksman, top-class romancer and all-around superspy. Can Agent 00 rescue Dr. Kohler before it's too late?