I managed to finish Half-life 2, hl2 ep 1, and hl2 ep 2, and portal, and went through all again with commentary.

Man, those games rock.

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I found a secret in Half-Life 2, though. When you pick things up with the gravity gun, you can launch things at the enemies andthey'll take damage! I don't know if Valve saw this bug yet or not, but it's kinda game breaking since you don't need guns anymore...
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