Guide: Portal Least Steps Challenge (Test Chamber 16) Published 2013-03-15 Download video MP4 360p Download video MP4 720p Recommendations 03:08 Guide: Portal Least Steps Challenge (Test Chamber 17) 17:58 Portal's Weird Beta Maps 44:04 Tartarus at Death Valley: Do I need to say anything? 05:14 How Speedrunners Skip Portal 2's CRAZIEST Chamber 02:49 Guide: Portal Least Steps Challenge (Test Chamber 15) 14:49 Top 10 Favorite Portal 2 Community Test Chambers 10:26 Portal Challenges: Least Steps 17:16 Game Theory: Can You Solve Portal's IMPOSSIBLE Puzzle? (Portal) 08:53 Aperture Tag Both Endings Tutorial 05:47 [Road to 100%] Portal - Camera Shy - Achievement Walkthrough (All cameras) 05:39 Portal walkthrough - Test Chamber 16 (Advanced) 08:48 Portal 2 Wheatley's Betrayal 4K 01:01 Guide: Portal Least Time Challenge (Test Chamber 15) 04:47 Portal: Challenge-map - Chamber 17 (Least Portals) 05:51 Portal Challenges: Least Time 02:21 Guide: Portal Least Steps Challenge (Test Chamber 18) 04:20 Portal 2 - GLaDOS wakes up in co-op 02:41 Portal - Chamber 18 (least steps) 08:36 Portal Challenges: Least Portals 48:03 𝗣𝗢𝗥𝗧𝗔𝗟 𝗥𝗘𝗟𝗢𝗔𝗗𝗘𝗗 - Full Walkthrough Similar videos 01:54 Portal - Chamber 16 (least steps) 01:09 Guide: Portal Least Time Challenge (Test Chamber 16) 03:11 Portal Test Chamber 16 Least Steps 01:50 Guide: Portal Least Portals Challenge (Test Chamber 16) 08:36 Portal - Gold: Least Steps - 16-18 07:34 Portal Walkthrough - The Challenge Test Chambers - Test Chamber 16 (Least Steps - 70 Steps) 00:35 Chamber 16 Least Steps Challenge (Gold) 2 Steps 03:04 Portal Challenge, Test Chamber 16, Least Steps (14), Excerpts 04:35 Portal Chamber 16 Least Steps (19 steps only) 01:56 Portal - Chamber 16 (least portals) 00:53 Portal: Chamber 16 Other Route (Clipping Glitch) 07:15 Portal: Challenge Maps - Test Chamber 16 Least Steps (Gold Medal) 00:29 Portal 1 Chamber 16 Skip 01:03 Portal Challenge Chamber 16 Least Steps (31) 00:26 Portal Test Chamber 16 (17 Seconds Portal Bump Method) 00:43 Portal - Chamber 16 (least time) More results