Valve’s Portal 2, sequel to the suprise hit of the Orange Box, is twice the size of the original. According to a hands-on exclusive on Nowgamer.com, you now have a new companion robot called Wheatley who can give you access to secret areas around GlaDOS’s old lair. While you’re exploring the ruins, GlaDOS boots herself up and you adventure begins.
Portal 2 also has a new two-player co-operative mode, a completely seperate story to the solo game where you and a friend play as two robots attempting to escape the lab. Portal 2 will be available in 2011.
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