Portal: Prelude Test Chamber 15 (Bonus)

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

Hazards

 * High Energy Pellets
 * Suppressors Fields
 * Crushing
 * Cube Hazard
 * Turrets

Strategy
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Portals

 * To do

Steps

 * To do

Time
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 * To do

Award requirements
Please note the steps challenge is defective.

Video strategies

 * To do