| 6 vídeos se encuentrans. |
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 | | tiempo | vistas | |
 | Portal 2, Developer Commentary, Singleplayer Part 4 | 7:38 | 1,827 | |
 | Portal 2, Developer Commentary, Singleplayer Part 3 | 10:33 | 1,909 | |
 | Portal 2, Developer Commentary, Singleplayer Part 2 | 9:45 | 2,981 | |
 | Portal 2, Developer Commentary, Singleplayer Part 1 | 14:33 | 7,005 | |
 | Portal 2, Developer Commentary, Co-op: Part 2 | 10:10 | 2,884 | |
 | Portal 2, Developer Commentary, Co-op: Part 1 | 7:18 | 12,897 | |
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