However, knowing that his grandson, Jin Kazama, had one, he searched for him, also learning that his son Kazuya (also possessing the Devil Gene, but he died 21 years ago) was stored inside the labs of the Mishima Zaibatsu's rival, G Corporation. As he hadn't the Devil Gene, the experiment fails. In Tekken 4, Heihachi got some blood and tissue from Ogre to splice with his genome, making him immortal. One of the many scenarios in Tekken 5, and one of my favourite
