Gantz: O
Digital Frontier
When to watch: Best watched after Episode 26 of Gantz for full context.
A full-CG theatrical film released October 14, 2016, animated by Digital Frontier, adapting the manga's separate Osaka arc, following a new group of Gantz players — including Masaru Kato's Osaka counterpart Kei Kishimoto — as they're forced into a brutal battle against invading demons and a massive black samurai, with no memory of the game's earlier events.
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Frequently Asked Questions
Is Gantz: O a sequel to the 2004 Gantz anime?
Not directly — Gantz: O adapts the manga's separate Osaka arc with a mostly new cast of players, rather than continuing the story of Kei Kurono and the Tokyo group from the 26-episode TV series.
When and where was Gantz: O released?
Gantz: O premiered at the Venice International Film Festival on September 8, 2016, before opening in Japanese theaters on October 14, 2016, distributed by Toho.