Watch Gantz
Two teenagers, having attempted to save a stranger on the subway tracks, find themselves trapped in a room controlled by a sinister black sphere, which compels them to track down and eliminate extraterrestrial beings secretly inhabiting the planet.
Watch Gantz: Perfect Answer
Kurono's life is transformed after Kato's passing, leading him to dedicate himself to earning 100 points and bringing back his deceased friend, Kato, by fighting with other unwilling participants summoned by GANTZ.
Watch Gantz: O
A teenager is brought back to life by a mysterious computer system after being killed in a subway station, and is then compelled to engage in a fierce battle against a massive swarm of extraterrestrial invaders in Osaka.
