This is what I get when I start Portal 2, after the introduction "Look Up" "Look Down" screen.
Is this part of the game, or is there something wrong with my installation?
Flashing blue “error” – is this part of the game, or a fault
portal-2technical-issues
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Best Answer
This means an error in the Steam download.
Verify the game integrity (Right-click Portal 2, Properties, Local Files, Verify integrity of game cache) and it should re-download the corrupt files.