The Man Who Became a God (神となった男 Kami to Natta Otoko), originally The Phenomenal Power of the Red Stone (驚異の赤石パワー Kyōi no Sekiseki Pawā) in the WSJ release, is the one hundred twelfth chapter of the JoJo's Bizarre Adventure manga. It is also the sixty-eighth chapter of Battle Tendency.
There was once an ancient tribe, who held incredible power. These people lived far longer than humans could, but were unable to step into sunlight. Primitive humans worshiped them as gods. They lived peaceful lives, however when the genius Kars was born, everything went downhill. Believing that these people had untapped potential, Kars created the Stone Mask and used it to strengthen his own abilities. The people feared him, and tried to stop him, but Kars killed all of them, even his own parents. Afterwards Kars, along with two babies(Wamuu and Santana), and his comrade Esidisi set off to learn the secrets of the Stone Mask.
Joseph tries attacking Kars with a Ripple Overdrive, but the Ripple has no effect on Kars now. In fact Kars is now capable of generating his own Ripple. Kars attacks Joseph with a Ripple a hundred times stronger, melting Joseph's flesh. Joseph, realizing the situation, along with Stroheim, give up knowing that the god standing before them is truly unstoppable. Kars decides to kill Joseph using a Ripple of his own. Kars strikes, but Joseph instinctively raises the Red Stone of Aja. Kars hits it, his amplified Ripple causing a massive eruption.
Kars and Joseph are blasted away on a large rock. Kars attempts to fly away, but is struck by Joseph's severed hand. This act seals Kars' fate, as he gets blasted further up by volcanic fragments. JoJo proclaims that this was his plan from the very beginning (this of course is a lie, said only to piss off Kars). While the Earth was unable to defeat the monster, surely not even Kars could defeat the cold vacuum of space.