Portal 2 (inclu - All Dlc)

: Features new voice lines from Cave Johnson (J.K. Simmons) explaining why you are testing across infinite alternate universes. 3. Sixense MotionPack / In Motion

: Over 20 unique chambers (12 single-player, 8 co-op) designed specifically for motion controls. Portal 2 (Inclu ALL DLC)

: Adds a competitive layer to both single-player and co-op maps. You can compete for the fastest time or the fewest portals placed with global leaderboards. 2. Perpetual Testing Initiative (DLC 2) : Features new voice lines from Cave Johnson (J