In terms of difficulty, the puzzles are a bit easier than in the first game, largely because the surfaces on which portals can be placed are fewer, so figuring out most test chambers usually comes down to just shooting portals onto all of the available surfaces until you figure out the correct sequence. This time around, puzzles are a bit changed, mostly because of the rooms, that showcase just how much time has passed since the original and how nature, and the disasters it brought, has taken a toll on the whole building.Īs you progress through the story, you go from the old crisp and white labs that were present in the original game, to ravaged ones or into the depths of the Aperture facility, which provide a stunning look at the origins of the company, as well as its past experiments. Portal 2 doesn't mess with the basic recipe of its predecessor, as players, once again the gravity-defying boots of Chell, must use the Portal gun to solve ingenious puzzles in a variety of test chambers as well as in and around the Aperture facility. Some living and breathing 'ninjas,' however, have even posted 4-hour completion times, but they're in the minority. Valve, after critical hits like Half Life 2 and its subsequent two episodes, has once again delivered a flawless narrative in the form of Portal 2, which, depending on your skill, can play out in around 8 to 10 hours. Suffice it to say that Portal 2 has an even better story than the first one, paced wonderfully and filled with twists and turns that reveal many things about almost all of the characters, as well as the actual Aperture Science facility. That's pretty much the only thing I can say, as from then on, the story goes through some major changes, which are best left unspoiled. He says that the whole Aperture Science facility has been ravaged by the forces of nature, and that he and Chell must escape before the whole thing comes crashing down. Wheatley is endearing right from the first moment, and will no doubt become the favorite virtual character of many players. Now, after an indeterminate amount of time, she is woken up by Wheatley, a former personality sphere of the original game's antagonist, GLaDOS. If you didn't read the Lab Rat mini-comic release by Valve, you should know that Chell, after the events of the first game, was rescued by one of the surviving scientists at Aperture laboratories, and put into a stasis pod in order to survive. It's hard to talk about the story of Portal 2 without revealing some major spoilers, so I'll keep it simple.

Portal 2 coop levels