Its called portal its a puzzle type game that looks fun but I bet it would get very old very fast.

http://youtube.com/watch?v=if3Qv2tHyfA

Looks like a bit of a ripoff from Prey.

Lots of people are saying it's a rip off of Prey but their portal system is very diferent. Also, I believe it's Half-Life 2: Episode 2 and not a new game (Funny though they'd release a trailer for a new expansion so soon after releasing the first expansion).

This was very intruiging to me, it looks like an awesome game, and it's not it's own release, it comes with the next installment of HL2, and would probably be the only reason I would get it.

Agreed Dim. I"ll be buying it also myself, it looks like a very interesting game.

i saw this demo ages ago on my 360 its look mad cant wait to get it!