Portal 2 how many coop chapters July 8, 2019 16 32 64 128 Portal 2 how many co op chapters Portal 2 coop chapters Portal 2 coop chapter 2 level 2 Portal 2 coop secret level Portal 2 coop chapter 5 level 9 Portal 2 walkthrough coop chapter 3 level 8 Portal 2 level 8 co op walkthrough
