Portal 2 Chapter 8 Test Chamber 1
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Chapter 8 - Test Chamber 1
sp_a4_tb_intro.bsp 
This is the forty-ninth level of the game, and takes place within an Aperture Science Test Chamber. This level introduces the Excursion Funnel, and the way in which it can be used to move the player and objects as well as circumvent the laws of gravity.
Threats faced
None
