Playing Orange Box's Portal : Staircases that Disappear in Orange Box's Portal

Test Chamber 14 of Orange Box's game Portal has staircases that disappear after you've ascended them; learn more tip on playing Orange Box's game Portal in this free computer gaming video clip.

Channel: Gaming
Uploaded: November 30, 1999 at 12:00 am
Author: expertvillage

Length: 01:24
Rating: N/A
Views: 77

Tags: box  faq  games  gaming  orange  portal  the  video  walkthrough  xbox360  

Video Comments