Shinsuke Nishikawa

First appearance: Chapter 29; Season 1, Episode 6 One of the underlings of Nemoto Tetsuo. One of the hunters at the Tanaka Aliens mission. He is a Zoku Biker Gang Member. Before the mission, he and his gang members get jumped by a rival gang; he gets killed during the fight.

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He gets killed by Gantz, by having his head explode because he was walking out of the "playing zone."