Gantz

Gantz is a manga and anime series written by Hiroya Oku. Gantz tells the story of a teenager named Kei Kurono who dies in a train accident and becomes part of a semi-posthumous “game” in which he and several other recently deceased people are forced to hunt down and kill aliens. The missions in which they take are often dangerous. A very low number of people survive each mission but are replaced by others who have recently died.

The Gantz anime ran for 13 episodes and had a direct sequel called Gantz The Second Stage, which continued the series for another 13 episodes. Both seasons make up the 26 episode series. It was licensed in North America by ADV Films. The anime series is distributed in the UK by MVM Films, and in Australia and New Zealand by Madman Entertainment. Though the manga has no license in the U.S., scanlation groups have released all chapters to date, over the Internet. The 20th volume of Gantz was released on December 19, 2006.

Wikipedia Entry: http://en.wikipedia.org/wiki/Gantz 

Download: http://www.stoptazmo.com/gantz/

Read it online: http://www.onemanga.com/Gantz/