Final Form (完全体, Kanzentai) is the 41st chapter of the Kiseijuu manga series, written and illustrated by Hitoshi Iwaaki.
Shinichi and Migi watch in awe as the decapitated body has its head replaced. Revealing his body has 5 Parasites inside of it, Gotou takes over. Quickly outclassing Shinichi, and hitting him from multiple angles, he has no choice but to run. Though Gotou easily catches up with them, but due to blood loss and getting hit by a truck, Shinichi and Migi managed to escape.