12 0.00 Portal Beat the Game/OoB Best Splits Chamber 0 & 1 125.051 Chamber 2 & 3 75.612 Chamber 4 & 5 42.429 Chamber 6 & 7 37.76 Chamber 8 24.691 Chamber 9 28.949 Chamber 10 33.733 Chamber 11 & 12 37.971 Chamber 13 56.478 Chamber 14 26.714 Chamber 15 23.881 Chamber 16 22.569 Chamber 17 34.577 Chamber 18 52.777 Chamber 19 28.692 Escape 0 18.341 Escape 1 10.862 Escape 2 102.991