Portal Test Chamber 16 (Advanced)
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Test Chamber 16 (Advanced)
testchmb_a_11_advanced.bsp 
This is the fourth advanced chamber of the game. This version is unlocked when the original Test Chamber 16 has been completed. It has the extra challenge of including Turrets in cages, rendering them unable to be knocked down.
Hazards
- Turrets
Walkthrough
- in progress -
