GANTZ

Sinopsis

High school students Kei Kurono and Masaru Kato are struck and killed by a subway train after attempting to save a drunk man. They awaken in a mysterious room alongside other recently deceased individuals, where a large black sphere, known as Gantz, informs them that their lives are over. The sphere equips them with special suits and weapons, then sends them on dangerous missions to hunt and kill various alien creatures that secretly inhabit Earth. These missions are lethal, and few participants survive, but success earns points from Gantz.