Once Blue has the cube Orange can step on the red button to reverse the funnel and bring Blue and the cube back.Д«efore the cube is all the way back place the second portal on the wall in the corner opposite the pressure plate on the wall. Ride it all the way to a ledge with a cube. Step on the bouncer to get thrown into the funnel. Both players go through the portal and up the steps to the exit door.Д«lue places a portal at the end of the funnel and the second high up on the back wall.

Drop the cube under the laser and position it so it hits the laser receptor on the wall by the exit. Blue takes the cube to the laser room and places his second portal on the wall. Blue makes his way to the laser room as well, while Orange presses the red button in the laser room to drop a cube. Orange uses the funnels to get to the laser room. Blue will need to use the excursion funnels to get to the exit and place a portal on the white panel on the wall by the ledge. This fairly tricky level has the exit right above the entrance. Once both players reach the ledge the exit door will open. Orange places second portal on the wall underneath Blue so Blue gets carried along the funnel to the ledge with the cube.Дrop the cube off the edge so Orange can place it on the red button. Blue must place the second portal on the panel underneath him so he gets flung out across the room and hits a screen near the roof. Once Blue is high enough Orange removes the portal and stands on the red button. Blue places a portal on the sloped panel on the opposite wall and then glides up the funnel. Orange places a portal above the funnel and on the panel on the floor to the right. Orange comes out of the barrier room and places portals on either side of the panels so the ball goes through and fits into the laser compartment. Orange places the ball in the funnel which causes it to drift into the panels hanging from the roof. Then presses the red button to get a ball.Д«lue stands on the red button and places a portal under the funnel and the second on the panels to the right of the barrier. Orange uses the bouncer to bounce into the funnel and passes through the barrier. The second robot will drop down and youвЂ™ll both be carried along to the exit.Д«lue places a portal under the excursion funnel and the second portal on the wall to the left so the funnel goes through the barrier to the right.

Place a portal on the wall behind the platform and the other on the roof above the funnel. The other robot can drop down onto the platform. One of the robots will reach the button which lifts up a platform below. As youвЂ™re moving along Orange will need to add two more portals to extend the funnel. Blue places a portal above the funnel and another in the wall over the edge.

Editing Tools: Portal 2 editing tools will be included.The extraction funnels will carry you, and any objects inside of them, along in one direction.

Massive sequel: The original Portal was named 2007's Game of the Year by over 30 publications worldwide.

Advanced physics: Allows for the creation of a whole new range of interesting challenges, producing a much larger but not harder game.

Complete two-person co-op: Multiplayer game featuring its own dedicated story, characters, and gameplay.

Extensive single player: Featuring next generation gameplay and a wildly-engrossing story.

Success will require them to not just act cooperatively, but to think cooperatively. This new mode forces players to reconsider everything they thought they knew about portals. The gameвЂ™s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game. The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.

Portal 2 chapter 4 walkthrough