Humans Get Teleported Into A Video Game Like World To Fight & Survive

After Dying, Humans Get Teleported to an Alternate Earth and Forced to Hunt Aliens As Kei and Kato try to rescue a man from the subway tracks, they get run over by a train. They later wake up in a room with the black sphere named Gantz, which tells them that it now owns their lives. Gantz tasks them to kill aliens to either save themselves, or someone they care for. Gantz is a Japanese series of live-action action horror science fiction films. The Gantz series is based on Hiroya Oku's manga series, Gantz. The films are titled Gantz, the sequel Gantz: Perfect Answer, and a made-for-TV movie titled Another Gantz. The first film, starring Kazunari Ninomiya and Kenichi Matsuyama, follows two high school students who die and are transported to an alternate world. In this alternate reality, a black sphere gives them a mission to kill aliens.