King Kong 2 - Ikari no Megaton Punch (Japan)

About

After being shot down from the World Trade Center, Kong is kept alive in a coma for about ten years. When another Kong-sized female gorilla is found, a blood transfusion is arranged from the female and an artificial heart is installed inside Kong. With a functioning heart, Kong escapes from the facility and seeks to procreate with the female Kong still held in captivity.