Portal 2 draws from the award winning formula of innovative gameplay, story, and music that earned the original portal over 70 accolades and created a cult following.

The single player portion of Portal 2 introduces a vast of dynamic new characters, a host of puzzle elements, and a much larger set of devious test chambers. Players will explore never seen before areas of the Aperture scientific labs as be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.

The games two player mode features its own separate campaign with unique story, test chambers, and two new player characters. This mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act co-operatively, but to think co-operatively.

Portal 2 Xbox 360 PAL 2011. Condition is "Very Good". Dispatched with Royal Mail 1st Class Large Letter.