Cybernetics Guardian(聖獣機サイガードSeijuki Cyguard) is an anime Original Video Animation. It was released in English on 16 March 1999, licensed by Central Park Media. It is about John Stalker who is a research pilot for the fictional Central Guard Company. John was born in the city of Cyber-wood, in an area known as the Cancer Slums. The antagonist of the story, Adler, plans to attack the citizens of the Cancer Slums.