How can you track progress in Portal 2 Co-op?
How can you tell if you've already completed a level in the co-op part of Portal 2? I thought it might be the bars (blue/orange), but I'm not sure.
Solution 1:
When you go into the entrance for a co-op zone, there will be a little bar graph and lights for each player (blue and orange) that show which of the maps they have completed.