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Challenges[edit]

Portals[edit]

  • Bronze: 16
  • Silver: 9
  • Gold: 6

6 Portal Strategy

  1. Proceed forward and walk carefully next to the wall on the white emitter of the laser floor.
  2. Shoot a blue portal through the energy wall onto the raised flooring below the cube dispenser.
  3. Shoot an orange portal at the nearby wall and go through.
  4. Shoot an orange portal at the ceiling, drop through the blue portal while ducking, then while falling, shoot an orange portal at the floor. This will launch you up into the cube dispenser and you will be able to direct yourself into the hole in the wall. (It is very important you are ducking while falling or you will not be able to make it into the hole.)
  5. Proceed forward, shoot an orange portal on the wall at the top of the ladder then go back to drop through the blue portal.
  6. Proceed forward into the broken pneumatic cube tube and drop down.
  7. Shoot an orange portal back through the energy wall into the first area, proceed forward, and place cubes on both buttons.
  8. Proceed to exit.

5 Portal Strategy

  1. Proceed forward and walk carefully next to the wall on the white emitter of the laser floor.
  2. Go into the hallway and stand in front of the energy wall. Shoot a blue portal in the ceiling above you.
  3. Duck. Shoot an orange portal in the floor below you.
  4. While falling at speed, shoot a blue portal through the energy wall onto the raised flooring below the cube dispenser.
  5. This will launch you up into the cube dispenser and you will be able to direct yourself into the hole in the wall. (It is very important you are ducking while falling or you will not be able to make it into the hole.)
  6. Proceed forward, shoot an orange portal on the wall at the top of the ladder then go back to drop through the blue portal.
  7. Proceed forward into the broken pneumatic cube tube and drop down.
  8. Shoot an orange portal back through the energy wall into the first area, proceed forward, and place cubes on both buttons.
  9. Proceed to exit.

2 Portal Strategy

  1. Proceed forward and walk carefully next to the wall on the white emitter of the laser floor.
  2. Shoot a blue portal through the energy wall onto the raised flooring below the cube dispenser.
  3. Shoot an orange portal at the nearby wall and go through.
  4. Go back the first room and very carefully place the cube so that it presses down both buttons at the same time.
  5. Proceed to the exit.

Time[edit]

  • Bronze: 2:00
  • Silver: 1:20
  • Gold: 1:00

Gold Time Strategy

  • Using the 2 portal strategy will allow completion with plenty of time remaining.

Steps[edit]

  • Bronze: 205
  • Silver: 140
  • Gold: 85

Steps Strategy

  • To make things easy, using the 2 portal strategy will allow completion in under 20 steps.