About This Game
Portal 2 is the second first-person shooter/logic game mix of the Portal saga. It was developed by Valve Corporation. After the events of the first Portal, Chell (our protagonist) wakes up 50 days after being cryogenized in what appears to be a hotel room, where an alternative machine gives her a series of instructions to move and finally go back to sleep.
Chell is later awakened again, but this time the room she is in is seriously dilapidated, with the timer failing after apparently over a century of failures. In the background, a voice sounds on the other side of the door, after opening it, Wheatley appears, the personality module that woke Chell up from her lethargy.
A new mode has been added, a Cooperative mode in which robots, P-Body (Orange) and ATLAS (Blue) are controlled and tested by GLaDOS to solve cameras that no human could have.