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Part 26
Portal

Part 26

Master Portal's Part 26 by learning to redirect rocket sentries to break glass and tubes, and strategically deactivating turrets using portals.

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Master Portal's Part 26 by learning to redirect rocket sentries to break glass and tubes, and strategically deactivating turrets using portals.

Walkthrough
  1. 1
    Enter the closest door to the right.
  2. 2
    Head down the hall and go through the energy grid.
  3. 3
    Enter the door and press the button.
  4. 4
    When the rocket launcher appears, wait for it to lock onto you, then move out of the way. It will shoot the glass from in front of you.
  5. 5
    Quickly run through where the glass was and position yourself on the other side, near the other glass.
  6. 6
    Place a portal on a wall, but do not place the other one yet.
  7. 7
    When the rocket locks on, run away to have it break this glass, too.
  8. 8
    Quickly run through the other door to avoid being shot.
  9. 9
    Hurry down the hall, and enter the only door here.
  10. 10
    Shoot a portal on the wall.
  11. 11
    Stand near the portal, then when the sound for the rocket locking on comes, run away. If done correctly, it will hit the glass and break it.
  12. 12
    Jump through the window where the glass just broke.
  13. 13
    Take the portal that is on the wall near you and place it on the floor under the tube.
  14. 14
    Stand near the side of the tube, and wait for the rocket locking sound. Run away to cause the rocket to break the tube.
  15. 15
    Grab the box and place it next to the small opening in the wall.
  16. 16
    Jump up and climb through.
  17. 17
    At the end, kneel down, then look down until you can find a white portion of wall. Shoot a portal there.
  18. 18
    Go back through the shaft and back to where you broke the tube for the box. Shoot a portal there and go through.
  19. 19
    Continue along until you reach a ledge. Look to the right to see a small platform with a large slanted edge in front of it. Shoot a portal there, then re-enter the one on the wall.
  20. 20
    Carefully walk along the top of it.
  21. 21
    After the loading screen, walk to the edge, then look right. You will see a ledge. Shoot a portal at the wall there, then shoot another at the wall near you and go through.
  22. 22
    Go down to the end of the short hallway near you, then look up to find a grate. Shoot a portal through, then go back through the portal near you.
  23. 23
    Several doors will shoot open, and behind them all are turrets. Turn left and shoot a portal BEHIND the turret there.
  24. 24
    Run through the one on the wall near you, then pick up the turret and drop it.
  25. 25
    From here, you can see inside of another cubby. Shoot a portal there, then go through the one near you.
  26. 26
    Pick up and drop the turret. Repeat this until every single turret is deactivated.
  27. 27
    If you cannot shoot a portal behind a turret, shoot one inside of the cubby hole to whatever wall you can see, but do not go through. Instead, go to the side of your current cubby opposite of it and move your cursor to the very edge of where you can see.

Commentary Nodes:

  • A commentary node is floating near the rocket launcher, but cannot be activated until after it destroys the glass.
  • A commentary node is to the right (near the hallway, not the pistons) inside of the area where the window was protecting.

Developer Commentary:

  • [Ellen McClane] discusses maintaining GLaDOS's voice while adding emotion and pronunciation.
  • [Bill Van Buren] explains the switch from lasers to rockets for sentries and why they don't speak.
  • [Realm Lovejoy] mentions how breaking the tube allows players to test newly trained skills.

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