Gantz (2010)

After trying to rescue a man on the subway tracks, two teens wake up in a room dominated by a mysterious black sphere that sends them to hunt down and kill aliens hiding on Earth.

In Gantz, consciousness is carried by the dead — a plane of “death‑game arena”. The story fights on E8/E10 of the E0–E14 reality ladder, compressing mortality, technology, otherness, control, survival.