Machine Gun is a cyborg assassin for Black Ghost and an antagonist in the Cyborg 009 manga and 2001 anime. His left hand has been replaced with a machine gun. He was not named in the manga, instead being given the name "Machine Gun" in the 2001 Cyborg Soldier anime.
Machine Gun and his fellow cyborg assassins were later sent to work under Cyborg 0013 and prevent the 00 Cyborgs from stopping his rampage across Tokyo. They also at some point kidnapped Dr. Kozumi and went to deliver him to 0013.
Machine Gun went with Scarecrow and Roentgen to deliver Dr. Kozumi to 0013. However, 009 appeared and attempted to save Dr. Kozumi, pursuing Scarecrow and the other Black Ghost operatives as they fled.
After 009 defeated Roentgen, Machine Gun and Scarecrow attempted to shoot him, but they were stopped by Tsutomu, who told them not to hurt the child 009 was holding. However, Scarecrow and Machine Gun didn't listen and instead opted to shoot at 009 again. Cornering 009, the two prepared to execute 009, but he and Machine Gun were suddenly attacked and killed by Tsutomu, who revealed himself to be Cyborg 0013.