Gantz is a tV series anime that premiered in spring 2004, produced by GONZO.

About the production: the story comes from a manga, there are 13 episodes of about 23 minutes and its current status is "finished".

Its main genres are action, drama, ecchi, horror, psychological, sci-fi and supernatural, with themes such as Death Game, Body Horror, Gore and Aliens.

On AniList, Gantz has an average score of 64%, an average score, and appears on 64,145 users' lists.

The franchise continues in or follows from: GANTZ 2.

Thought your life was bad? Sometimes, death is worse. There is no salvation, peace, nor god waiting to receive you into their care. But wait, a god? Maybe you are talking about that big black ball stuck in the room with you. Now you are thrown into a game, fighting green aliens and robot monsters for the chance to survive. When Kei Kurono is killed, he thus finds himself caught in such a game; a test of his skills, morals and will to survive. His life is not his own, his death spat and trampled upon over and over again. What happens if he does not listen? God knows. A word of warning: Gantz is not for the faint-hearted, but neither is it as simple as it looks. Gore, rape and violence is rampant, as are portrayals of greed, violence, and all the ugliness that one sees in society today. [Written by MAL Rewrite]

Official synopsis from AniList.