Gantz

In Shinya Tsukamoto's "Gantz" (2010), two teenagers, saved from a subway track, find themselves in a room controlled by a black sphere that dispatches them to exterminate extraterrestrial invaders lurking among humanity. The film blends visceral violence with surreal horror, as the teens join a clandestine group of civilians drafted into an otherworldly war. Tsukamoto's stark, industrial aesthetic and frenetic editing heighten the sense of dislocation and existential dread, casting the protagonists into a bleak dystopia where morality is a luxury and survival is paramount.