Awesome movie cool action of sci-fi animation! A wonderful science fiction movie!

"Gantz: O" According to the instructions of the black ball, this group of people need to put on combat uniforms and take up weapons to assassinate the "scallion oil star". If you successfully hit the "star man" and survive to go back to the room, GANTZ will give points based on each person's performance, if you get a total of 100 points, you have the chance to resurrect back to the original world. Some people go into the killing game for the bonus, some are ruthless for survival. At the juncture of life and death, the cowardly Xuanyeji and the kind-hearted Kato Katsuya had to be involved too.
Amid brutal killings, Mano grows stronger for victory, while Kato hates a world dominated by violence and denies battle.