The last three proper tests in Portal 2 are no joke. They really push the player to their puzzle-solving limits which is great for those looking for a solid challenge, but less than ideal for those ...

Flying through the air, through portals, and to higher platforms. After the player takes Wheatley to wake up GLaDOS in Portal 2, the tutorial of the game ends and the real tests begin. As GLaDOS ...

And it has no effect! A new batch of Portal 2 screenshots from the Game Developers Conference in San Francisco show off the Companion Cube (being zapped by lasers), Aperture turrets, complex ...

GameSpot may get a commission from retail offers. Cam fights for independence and Jake tries to look ship-shape while Guy presides over all to judge this week's test of the week. Also, lasers.