Anime Like GANTZ:O
You die on a random Tuesday and wake up in a room with strangers and a black sphere that says "start." The movie doesn't waste time explaining, it throws you into the mission immediately, all sleek CGI and bodies hitting pavement at terminal velocity. This is pure visual spectacle designed to make you feel the vertigo of sudden death and sudden purpose, and it commits completely to that feeling.
SYNOPSIS
Masaru Katou dies before he can celebrate his brother's birthday. He wakes in a black sphere's waiting room with strangers, all recently deceased, all confused about what comes next. The sphere offers them a choice: complete its missions and earn a second chance at life, or refuse and face oblivion. Armed with weapons they don't understand, Masaru and his fellow players are dropped into cities across Japan to hunt and kill aliens hiding among the population. The catch is simple: fail the mission, and you die for real. Survive enough rounds, and the sphere might let you leave. Masaru's kindness clashes with the brutality required to succeed. His teammates range from a hardened veteran who treats this as a game to an idol star struggling to process the violence around her. Each mission strips away more of their humanity, forcing them to question whether resurrection is worth the cost. The real test isn't finding the aliens. It's deciding who they're willing to become to live again.
