Still Alive 03

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Still Alive 03

Chamber number 0.pngChamber number 3.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 0.pngChamber progress 3.pngChamber progress slash.pngChamber progress 1.pngChamber progress 4.png

Still Alive 03.png
Chamber icon zap camp.pngChamber icon cube hazard on.pngChamber icon pellet hazard.pngChamber icon pellet catcher.pngChamber icon water hazard.png
Chamber icon put a portal bellow.pngChamber icon still alive laser field.pngChamber icon turret hazard.pngChamber icon crusher hazard.pngChamber icon cake.png

This test chamber is the third bonus level of the game. It is based off a level from Portal: The Flash Version MapPack. The challenges of this level are unlocked when the test chamber is completed once.




  • Proceed through the corridor and through the door on your right.
  • Go through the door to the right and shoot a portal on the wall near the second closed door.
  • Go back to the first area and shoot the other portal near the button.
  • Press the button, then quickly run through the portal and through the now open door.
  • Use the Victory Lift to reach the corridor above. Proceed into the next part of the chamber.
  • Go through the fizzler on the left and shoot a portal through the glass hole into the first area.
  • Place the other portal on the portal surface towards the back of the room. Go through and grab the cube.
  • Go back through the portal and use the cube to climb up the ledges next to the portal surface.
  • Place the cube on the button.
  • Jump back down the ledge and shoot a portal through the door opened by the button.
  • Go through your other portal into this room.
  • Shoot a portal through the glass hole into the first area. Go through the portal
  • Press the button to spawn a new cube, and bring it back through the portal. Place it on the button.
  • Go back through the portal and proceed to the exit.

Video walkthrough


  • There is a glitch allowing the player to obtain a theoretically infinite number of cubes.

Award requirements (challenge mode)

Portals Steps Time
Bronze Silver Gold Bronze Silver Gold Bronze Silver Gold
8 Portals 5 Portals 2 Portals 205 Steps 130 Steps 60 Steps 110 Seconds 60 Seconds 45 Seconds

Video strategies (challenge mode)

Portals challenge

Steps challenge

Time challenge