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Portal 2
Strategy Guide

First Published: 30-06-2011 / 00:00 GMT
Last Updated: 26-11-2018 / 06:29 GMT
Version: 1.0 (????) 14-12-2018 / 15:43 GMT

Portal 2 Guide Guide Info

Chapter 4 - The Surprise

Chamber 4

MISSABLE ACHIEVEMENT/TROPHY ALERT!

When you try and escape, GLaDOS will create a Light Bridge and open up a test room for you. If you follow her advice and cross over to it (towards your impending doom no less), you’ll be rewarded with the 'Good Listener' Achievement/Trophy’. Simply die and then restart from the last checkpoint to carry on.

Once you enter the room, position your first portal on the wall with the light bridge and then set the exit portal up by the red plunger in the top-left corner of the room.

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Walk through the portal, hit the plunger and run across the bridge towards the Companion Cube, once you fall to the ground, follow the only path available to you now. Keep running over the walkways until GLaDOS makes you an offer.

Once you enter the room, position your first portal on the wall with the light bridge and then set the exit portal up by the red plunger in the top-left corner of the room.

Walk through the portal, hit the plunger and run across the bridge towards the Companion Cube, once you fall to the ground, follow the only path available to you now. Keep running over the walkways until GLaDOS makes you an offer.

If you're after the Cheevo/Trophy then cross the bridge to the room (then restart from the last checkpoint as it's a dead end - literally). Otherwise, run down the light bridge away from the fake chamber.

Now continue on the linear path until you reach a small confined space littered with multiple turrets. Pick them all up from behind and you’ll find yourself looking for an escape route.

At the end there's a white wall, turn around 180 degrees and look for the hard to spot white wall behind some robotic arms. You'll want a portal here and on the wall behind you.

As you’re running along the walkway, fire a portal under the turret on your left to send it packing before moving on and up the stairs. Keep following your colleague until you reach the lift, enter it and pass through the doors to finish the chapter!

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Guide Information

  • Publisher
    Valve Corporation
  • Platforms
    Microsoft Windows, PlayStation 3, Xbox 360
  • Genre
    Platformer
  • Guide Release
    30 June 2011
  • Last Updated
    26 November 2018
  • Guide Author

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