Holy bizkits!
That guy had better not be a perv, and Kei's suit had better not melt off and leave him as an alien's side-dish. Well, not that it would matter that much, since there are two of him anyways, but still.
This reminds me a lot of 'War of the Worlds', except they have Gantz for fighting stuff off. What I don't get, is why they can't simply materialize the best weapons for everyone with Gantz, before sending them into battle. I mean, they DID get rid of the point system and all when they released everyone from their local Gantz units.