Gantz: O
Directed by Yasushi Kawamura, Keiichi Sato7.169%7.3
After being brutally murdered in a subway station, a teen boy awakens to find himself resurrected by a strange computer named Gantz, and forced to fight a large force of invading aliens in Osaka.
Where to Watch Gantz: O
Gantz: O Ratings & Reviews
- NonPlayableContentJune 10, 2025Just like this series origins its absolutely bananas and gross.
- RichardOctober 26, 2025Saw it on streaming and it felt like watching a video game cutscene with blood, style and existential dread. This one’s a full CG adaptation of the Osaka arc from the Gantz manga and it doesn’t hold back. After dying in a subway attack, teen Kei Kurono wakes up in a strange room with a black orb named Gantz and is promptly drafted into a brutal alien hunting game. The visuals? Slick. The violence? Relentless. The pacing? Surprisingly tight for a film that’s mostly boss fights. It’s not deep,but it’s intense. The animation is glossy and hyper detailed, like someone rendered Attack on Titan in Unreal Engine. The monsters are grotesque, the weapons oversized and the stakes feel high even when the characters barely get time to breathe. Watched it through without blinking. It’s the kind of film that makes you wonder what the manga must’ve felt like and whether anyone involved had a therapy budget. Not for the faint hearted, but if you like your sci-fi nihilistic and your action dialed to eleven, this one delivers.
Gantz: O Trivia
Gantz: O was released on October 14, 2016.
Gantz: O was directed by Yasushi Kawamura, Keiichi Sato.
Gantz: O has a runtime of 1 hr 35 min.
Gantz: O was produced by Atsushi Moriyama, Hideaki Iwamoto, Kazutaka Yamanaka, Mikio Ono, Naoya Moritani, Shinjiro Yokoyama.
The key characters in Gantz: O are Kei Kurono (voice) (Yuki Kaji), Masaru Kato (voice) (Daisuke Ono), Reika (voice) (Saori Hayami).
Gantz: O is rated NC-17.
Gantz: O is a Sci-Fi, Thriller, Action film.
Gantz: O has an audience rating of 6.9 out of 10.