DIO's World: Kakyoin -Duel in the Barrier- (DIOの世界 -花京院 結界の死闘- DIO no Sekai -Kakyōin: Kekkai no Shitō-) is the twelfth episode of the JoJo's Bizarre Adventure OVA. It adapts Chapter 250 through Chapter 256 of the manga.
DIO pursues Joseph through the streets of Cairo, leaving an incredible swath of death and destruction in his wake. Another of the companions comes to Joseph's aid, only to be crushed by the power of DIO's Stand, "The World". As the shattered hero lies alone and dying, he realizes in the last moments of life the true nature of DIO's Stand... can he warn the others before it's too late?
- The death of Wilson Philips is made much more gorier here than in the manga.