Gantz Omnibus (Manga) (Paperback) Vol 02

Ordinary Tokyo citizens resurrected from death by a mysterious black orb, the Gantz team is conscripted to fight bizarre, deadly aliens in a game that promises release from the game... or oblivion. But the game's purpose is unclear, and the stakes are far greater than survival! Dark Horse Comics
(W/A/Ca) Hiroya Oku