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Chapter 4 The Surprise
Updated:
Below you'll find full walkthrough videos with audio commentary. We put in Achievement / Trophy videos where they are relevant as well. Enjoy!
Portal 2 - Walkthrough: Chapter 4 The Surprise
Up Next: Chapter 5 The Escape
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Portal 2 Valve
Initial Release: Apr 19, 2011
ESRB: Everyone 10+ PC Xbox 360 PlayStation 3 Macintosh