Portal 2 Chapter 4 Test Chamber 19
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Chapter 4 - Test Chamber 19
sp_a2_laser_chaining.bsp 
This is the twenty-ninth level of the game and is set within a dilapidated Test Chamber. This level requires the player to utilise advanced knowledge of the Thermal Discouragement Beam, Aerial Faith Plate and momentum in order to proceed. This level features Turrets as its main hazard.
Hazards
Walkthrough
Video walkthrough
Music
Main article: Portal 2 soundtrack
Comedy = Tragedy + Time by Aperture Science Psychoacoustics Laboratory [3:29] | 
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Gallery
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