PORTAL 2 WALKTHROUGH PART #...

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MP4 (Source) 1280 x 720 195.43 MB
FLV (Flash) 640 x 360 67.6 MB
FLV (FlashHD) 1280 x 720 118.32 MB
MP4 (480p) 640 x 360 40.37 MB
MP4 (720p) 1280 x 720 123.66 MB