It is also possible to complete this chamber without placing any portals. This is a more difficult solution to the puzzle so the basic solution is recomended
== Video walkthrough ==
== Video walkthrough ==
Revision as of 11:03, 13 January 2012
“I can't get over how small you are!” This article is a stub. As such, it is not complete. You can help Portal wiki by expanding it.
Chapter 4 - Test Chamber 20
sp_a2_triple_laser.bsp
This is the thirtieth level of the game, and is the first level to be set within a fully-repaired and functional Aperture Science Test Chamber. This level requires the player to combine precise Portal-placement and multiple Thermal Discouragement Beams in order to proceed.
It is also possible to complete this chamber without placing any portals. This is a more difficult solution to the puzzle so the basic solution is recomended