107 Portal 1 Facts YOU Should Know | The Leaderboard Published 2016-03-11 Download video MP4 360p Download video MP4 720p Recommendations 18:08 107 Portal 2 Facts YOU Should Know | The Leaderboard 17:16 Game Theory: Can You Solve Portal's IMPOSSIBLE Puzzle? (Portal) 08:53 I Made Portal 3 Because Valve Wouldn't 28:15 The Darker Side of Aperture | Personality Cores | FULL Portal Lore 06:13 So I turned Alexa into GLaDOS 10:52 Portal M4R10 - If Mario was in...Portal 14:08 Game Theory: Portal 2, Does Chell DIE? 24:49 The Robot That Refused To Be A Moron | Wheatley | FULL Portal Lore 2:51:23 The Combined Timeline | COMPLETE Half-Life & Portal Story & Lore 32:07 The Robot That Lied About Cake | GLaDOS | Full Portal Lore 11:21 Is Portal 1 or Portal 2 better? 05:01 Portal - Meet The Cores 1 06:21 Portal 1 (Story Condensed) 01:26 LORE - Portal Lore in a Minute! 28:33 The Man That Hated Lemons | Cave Johnson | Full Portal Lore 10:48 Portal 2: Welcome to Aperture Labs 33:54 Half-Life & Portal - The Complete Story (What You Need to Know!) 20:05 Portal 2's Cut Protagonist | Mel | FULL Portal Lore & Cut Content 15:14 107 Facts About Team Fortress 2 YOU Should KNOW | The Leaderboard 15:50 107 Undertale Facts YOU Should Know | ft. Ross from Game Grumps Similar videos 20:43 107 God of War Facts YOU Should Know Part 1 | The Leaderboard 18:47 107 Half-Life 3 Facts YOU Should Know! | The Leaderboard 18:01 107 CLASH of CLANS Facts that YOU Should Know! | The Leaderboard 17:03 107 Five Nights At Freddy's Facts YOU Should Know! | The Leaderboard 20:36 107 Borderlands Facts that You Should Know | The Leaderboard 25:42 107 Angry Birds Facts YOU Should Know | The Leaderboard 18:14 107 Quantum Break Facts YOU Should Know | The Leaderboard 20:01 107 BioShock Facts YOU Should Know | The Leaderboard 20:02 107 Tetris Facts that YOU Should Know! | The Leaderboard 26:26 107 Fable Facts that YOU Should Know! | The Leaderboard 24:39 107 Dark Souls Facts YOU Should Know | The Leaderboard 21:14 107 Facts About Call of Duty: Black Ops 1 & 2 YOU Should KNOW | The Leaderboard 14:05 50 Things You Probably Didn't Know About Portal 21:39 107 HTC Vive Facts YOU Should Know | The Leaderboard 27:39 107 Warhammer Facts YOU Should Know | The Leaderboard 28:47 101 Facts About Portal More results