Portal: Prelude Test Chamber 09 (Advanced)
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This is the second advanced Test Chamber of the game. This version is unlocked when the original Test Chamber 09 has been completed. It has the extra challenge such has a harder Infinite Jump, less white surfaces, a faster Suppressor Field and the removal of the supplementary ledge.
Test Chamber 09
advanced_09.bsp 
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Hazards
- Goo
- Suppressors Fields
Walkthrough
- To do
Video walkthough
- To do