Portal 2 Chapter 8 Test Chamber 12
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This is the fifty-sixth level of the game, and takes place within an incomplete Aperture Science Test Chamber and the maintenance areas of the Facility. This level introduces the Laser Field, and features the Thermal Discouragement Beam as its primary mechanic.
Chapter 8 - Test Chamber 12
sp_a4_laser_platform.bsp 
Threats faced
- Falling to your death
- Thermal Discouragement Beam
