Guide: Portal Least Steps Challenge (Test Chamber 15) Published 2013-03-15 Download video MP4 360p Download video MP4 720p Recommendations 06:47 Guide: Portal Least Steps Challenge (Test Chamber 16) 10:26 Portal Challenges: Least Steps 01:39 Portal Test Chamber 13 Least Steps Gold Run (9 Steps) 04:47 Portal: Challenge-map - Chamber 17 (Least Portals) 02:21 Guide: Portal Least Steps Challenge (Test Chamber 18) 02:23 Guide: Portal Least Portals Challenge (Test Chamber 18) 01:46 Guide: Portal Least Steps Challenge (Test Chamber 13) 01:50 Portal - Chamber 15 (least steps) 02:41 Portal - Chamber 18 (least steps) 01:43 Portal - Chamber 15 (least portals) 03:08 Guide: Portal Least Steps Challenge (Test Chamber 17) 08:36 Portal Challenges: Least Portals 01:09 Guide: Portal Least Time Challenge (Test Chamber 16) 02:29 Portal - Chamber 18 (least portals) 01:27 Portal Test Chamber 13: Using 4 portals ( Least Portals ) 05:51 Portal Challenges: Least Time 05:47 [Road to 100%] Portal - Camera Shy - Achievement Walkthrough (All cameras) 01:10 Portal - Chamber 13 (least steps) 12:26 Portal - Transmission Received Achievement Guide 06:11 How a Non-Speedrunner Can Skip Chamber 18 Similar videos 01:40 Guide: Portal Least Portals Challenge (Test Chamber 15) 01:01 Guide: Portal Least Time Challenge (Test Chamber 15) 04:19 Portal Walkthrough - The Challenge Test Chambers - Test Chamber 15 (Least Steps - 75 Steps) 03:43 Portal | Least Steps for Chamber 15 Gold Medal Guide 04:14 Portal: Challenge Maps - Test Chamber 15 Least Steps (Gold Medal) 00:40 Portal : chamber 15 - Least time (22 seconds) 01:05 Portal - Chamber 15 (least time) 02:27 The Orange Box (X360): Portal | Gold Medals: Test Chamber 15 (Least Steps) 02:10 Portal Chamber 15 Challenge Least Steps Gold Medal (47 steps) 00:53 Guide: Portal Least Steps Challenge (Test Chamber 14) 14:02 Portal: Challenge-map - Chamber 15 (Least Portals & Steps & Time) 01:42 Portal Test Chamber 15: using 14 portals ( least portals ) 04:57 Portal - least steps - chamber 15 - 1 step 01:14 Portal Speed Challenge - Test Chamber 15 00:26 Guide: Portal Least Time Challenge (Test Chamber 14) More results