For Y'ur Height Only (1981)

In the film, Weng stars as Agent 00, who is sent to stop the drug trade and its mysterious warlord Mr. Giant. (Giant is a dwarf, while 00 is a midget.) He befriends a woman who, still in the grip of the organization, works as a mole for him. This leads to many battles between 00 and the villain’s henchmen.