Portal 2 Walkthrough: Chapter 4, GLaDOS Test Chamber 20, 21 (Let's Play in 1080p HD) Published 2011-05-03 Download video MP4 360p Recommendations 06:13 So I turned Alexa into GLaDOS 07:12 💣💥 COMPARISON of the most DESTRUCTIVE EXPLOSIONS 💥💣 31:44 asdfmovie 1-14 (Complete Collection) 13:04 Bringing GLaDOS to life with Robotics and AI 29:49 I Tested 1-Star Hotels (again) 27:44 How many plants do you need to breathe? TESTED 18:01 The Legend of YouAreAnIdiot.org 10:35 The $2.1 Billion McDonald's Machine 06:26 Slow 19:14 2022 - Non-Euclidean Doom: what happens to a game when pi is not 3.14159… 11:22 YTP | Kickable Me 18:23 Почему Эту СМЕСЬ хотят ЗАПРЕТИТЬ? 08:57 The World's Worst Computer Virus: The I Love You Virus (Demonstration) 17:13 Octopus vs Underwater Maze 10:38 I Made a Game Inside a Game Inside a Game Inside a Game... 07:52 Proof That Computers Can't Do Everything (The Halting Problem) 23:15 How I Traveled at Lightspeed 12:00 I Tested Bonzi Buddy Against My Real PC Similar videos 01:34 Portal 2 walkthrough - Chapter 4: The Surprise - Test Chamber 20 03:50 Portal 2 walkthrough - Chapter 4: The Surprise - Test Chamber 21 (Escape) 05:15 Portal 2: Part 8/21: Chapter 4: Test Chambers 20-21 02:49 Portal 2 Level 20 03:58 Portal 2 walkthrough - Chapter 4: The Surprise - Test Chamber 19 01:07 Portal 2 - Chapter 4 - The Surprise - Test Chamber 20 07:39 Portal 2: Walkthrough - Chapter 4 - The Surprise (1080p60) 00:46 Portal 2 - Chapter 4: Test Chamber 20 02:29 Portal 2 Single-Player Walkthrough - Chapter 4: The Surprise - Puzzle 20 14:28 Portal 2 Walkthrough: Chapter 4, GLaDOS Test Chamber 18, 19 (Let's Play in 1080p HD) 02:39 Portal 2: GLaDOS Test Chamber 19 Walkthrough 04:20 Portal 2 Chapter 4 (The Surprise) - Test Chamber 21 00:31 Portal 2 Walkthrough: Chapter 4, Level 20 11:51 Portal 2 Playthrough :: [Chapter 4] [Part 7] :: Test Chambers 18-21 + Escaping Glados! 05:58 Portal 2 Single Player Chapter 4 Floor 20 21 Escape (1080p) 02:22 Portal 2 - SaBOTour Achievement (Chapter 4 GLaDOS Test Chamber 21) More results