Gantz Live Action

After an accident on the train platform, recently deceased childhood friends Kei and Kato find themselves transported to an empty apartment populated by other confused strangers and a mysterious black ball known only as Gantz, which issues them a set of strange suits and alien weapons, instructing them that their lives are forefit and now they must exterminate "dangerous aliens" from Earth in a series of games. As the body count rises, sacrifices are made and Kei must score 100 points on Gantz's scoreboard to either return fully to the world of the living, or revive a fallen comrade.