GANTZ:O

Gantz:O is a 2016 Japanese adult 3D animated science fiction action film directed by Yasushi Kawamura, with Keiichi Sato as chief director, and written by Tsutomu Kuroiwa. Produced by Digital Frontier, the film is based on Hiroya Oku's manga series Gantz and adapts the Osaka arc. The story follows Masaru Kato, who is resurrected by the mysterious black sphere "Gantz" after being murdered in a subway station. He is forced to fight alien monsters in Osaka alongside other recently deceased individuals. Equipped with high-tech suits and futuristic weapons, their objective is to eliminate all monsters within a time limit. Successful kills earn points, and reaching 100 points allows a player to choose between upgraded equipment, resurrecting a teammate, or leaving the game. The film explores Kato's battles, growth, and emotional connections with his teammates, showcasing the brutal game rules and the complexity of human nature.