Test Chamber 15 (Bonus)

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Test Chamber 15 (Bonus)

Chamber number 1.pngChamber number 5.png

Test Chamber Infobox previous.png
Test Chamber Infobox next.png
Test Chamber Infobox Portal Guy.png
Chamber progress 1.pngChamber progress 5.pngChamber progress slash.pngChamber progress 1.pngChamber progress 9.png

Portal Prelude Test Chamber 15.png
Chamber icon cube dispenser on.pngChamber icon cube hazard on.pngChamber icon pellet hazard on.pngChamber icon pellet catcher on.pngChamber icon water hazard.png
Chamber icon fling enter.pngChamber icon fling exit.pngChamber icon turret hazard.pngChamber icon dirty water.pngChamber icon empty on.png
Chamber icon empty on.pngChamber icon empty.pngChamber icon empty.pngChamber icon empty.pngChamber icon cake.png

This is the twelfth Bonus map of the game. It is unlocked when the original Test Chamber 15 has been completed.




  • To do


  • To do


  • To do

Award requirements

Please note the steps challenge is defective.

Portals Steps Time
Bronze Silver Gold Bronze Silver Gold Bronze Silver Gold
6 Portals 4 Portals 2 Portals 0 Steps 0 Steps 0 Steps 110 Seconds 85 Seconds 70 Seconds

Video strategies

  • To do

See also