Loo, Egan (October 1, 2009). "Gantz Manga Enters Final Phase in Japan on Thursday". Anime News Network. Archived from the original on October 2, 2009 . Retrieved October 1, 2009. Interview with Mr. Oku Hiroya, the original author of "GANTZ: O" making a work aiming for "a little mysterious" Juvenile". Gigazine. October 6, 2016 . Retrieved January 22, 2022.

Gantz Omnibus Volume 8 by Hiroya Oku: 9781506715452 Gantz Omnibus Volume 8 by Hiroya Oku: 9781506715452

Migoya, Hernan (June 17, 2009). "Hiroya vs. Migoya" (in Spanish). Glénat. Archived from the original on June 21, 2010 . Retrieved August 5, 2009. Gantz 20" (in Japanese). Shueisha. Archived from the original on May 8, 2008 . Retrieved July 18, 2008. Info dump: list of US theaters to screen Gantz in 2011". Japanator. December 16, 2010. Archived from the original on September 20, 2011 . Retrieved December 30, 2010. Gantz 36" (in Japanese). Shueisha. Archived from the original on May 1, 2013 . Retrieved March 19, 2012.In North America, ADV Films announced that they had licensed the series in 2004. It was released in uncut form, retaining the violence and nudity previously censored in Japan for broadcast. [51] Ten DVDs were released from February 8, 2005, [52] to January 17, 2006. [53] The series began broadcast in Anime Network in 2005. [54] In June 2010, Funimation announced that they had acquired the rights to the series; [55] they released a complete DVD set on January 25, 2011. [56]

Gantz Omnibus Volume 12 by Hiroya Oku: 9781506729169 Gantz Omnibus Volume 12 by Hiroya Oku: 9781506729169

Michael Gombos on Gantz". Dark Horse Comics. May 22, 2008. Archived from the original on March 18, 2009 . Retrieved November 20, 2008.

How many Gantz manga volumes are there in the Japanese version? Is it finished?

A spin-off, titled Gantz G, was serialized in Shueisha's Miracle Jump magazine from November 17, 2015 to March 2017 (the final chapter was published in Shonen Jump+ digital magazine). [34] [35] The manga was written by Oku and illustrated by Keita Iizuka. [36] [37] Dark Horse have also licensed the spin-off. [38]