| 1. | Portal 2: So Cerebral - PART 4 - Game Grumps | 6,834 | | Portal 2
|
| 2. | Portal 2: Laser Blocks - PART 3 - Game Grumps | 7,671 | | Portal 2
|
| 3. | Best of Portal 2 - Game Grumps Compilations | 7,924 | | Portal 2
|
| 4. | Portal 2: This is Science - PART 2 - Game Grumps | 8,419 | | Portal 2
|
| 5. | Portal 2: Feeling Barfy - PART 30 - Game Grumps | 9,024 | | Portal 2
|
| 6. | Portal 2: Head Scratcher - PART 29 - Game Grumps | 9,097 | | Portal 2
|
| 7. | Portal 2: Friendship Portals - PART 31 - Game Grumps | 9,125 | | Portal 2
|
| 8. | Portal 2: Tubin' to the Max - PART 27 - Game Grumps | 9,252 | | Portal 2
|
| 9. | Portal 2: Can't Hold Back! - PART 28 - Game Grumps | 9,369 | | Portal 2
|
| 10. | Portal 2: A Farty Party - PART 24 - Game Grumps | 9,582 | | Portal 2
|
| 11. | Portal 2: Goop It Up! - PART 26 - Game Grumps | 9,819 | | Portal 2
|
| 12. | Portal 2: Getting Closer! - PART 25 - Game Grumps | 10,087 | | Portal 2
|
| 13. | Portal 2: Doing Bro Stuff - PART 23 - Game Grumps | 10,566 | | Portal 2
|
| 14. | Portal 2: Breaking Through - PART 20 - Game Grumps | 10,585 | | Portal 2
|
| 15. | Portal 2: Brain Power - PART 21 - Game Grumps | 10,669 | | Portal 2
|
| 16. | Portal 2: Maximum Spikeage - PART 22 - Game Grumps | 11,093 | | Portal 2
|
| 17. | Portal 2: Overcomplicating - PART 18 - Game Grumps | 11,297 | | Portal 2
|
| 18. | Portal 2: Quick on the Draw - PART 19 - Game Grumps | 11,508 | | Portal 2
|
| 19. | Portal 2: Grab the Balls! - PART 13 - Game Grumps | 11,600 | | Portal 2
|
| 20. | Portal 2: Deadly Laser Adventure - PART 14 - Game Grumps | 11,724 | | Portal 2
|
| 21. | Portal 2: Grinding Gears - PART 17 - Game Grumps | 11,980 | | Portal 2
|
| 22. | Portal 2: Clean and Barfy - PART 12 - Game Grumps | 12,094 | | Portal 2
|
| 23. | Portal 2: Reverse Cyborgs - PART 11 - Game Grumps | 12,272 | | Portal 2
|
| 24. | Portal 2: Quite the Pickle - PART 16 - Game Grumps | 12,467 | | Portal 2
|
| 25. | Portal 2: Finale? - PART 32 - Game Grumps | 13,096 | | Portal 2
|
| 26. | Portal 2: Orange and Blue - PART 1 - Game Grumps | 13,201 | | Portal 2
|
| 27. | Portal 2: Good Old Fashioned Pickle - PART 9 - Game Grumps | 13,569 | | Portal 2
|
| 28. | Portal 2: You've Got The Power! - PART 10 - Game Grumps | 14,306 | | Portal 2
|
| 29. | Portal 2: Bringing It Hard - PART 15 - Game Grumps | 14,352 | | Portal 2
|
| 30. | Portal 2: Falling with Style - PART 8 - Game Grumps | 14,409 | | Portal 2
|
| 31. | Portal 2: Leap of Faith - PART 7 - Game Grumps | 15,035 | | Portal 2
|
| 32. | Portal 2: Jumping for Joy - PART 6 - Game Grumps | 15,737 | | Portal 2
|
| 33. | Portal 2: Balls Aplenty - PART 5 - Game Grumps | 16,575 | | Portal 2
|
| 34. | Portal 2: Tender Tendencies - PART 4 - Game Grumps | 18,388 | | Portal 2
|
| 35. | Portal 2: Child's Play - PART 2 - Game Grumps | 22,755 | | Portal 2
|
| 36. | Portal 2: Coming Together - PART 3 - Game Grumps | 25,014 | | Portal 2
|
| 37. | Portal 2: Expanding the Brain - PART 1 - Game Grumps | 42,474 | | Portal 2
|
