| 1. | Portal 2: Expanding the Brain - PART 1 - Game Grumps | 4,506 | | Portal 2
|
| 2. | Portal 2: Orange and Blue - PART 1 - Game Grumps | 3,599 | | Portal 2
|
| 3. | Portal 2: This is Science - PART 2 - Game Grumps | 1,890 | | Portal 2
|
| 4. | Portal 2: Finale? - PART 32 - Game Grumps | 1,628 | | Portal 2
|
| 5. | Portal 2: So Cerebral - PART 4 - Game Grumps | 1,557 | | Portal 2
|
| 6. | Portal 2: Laser Blocks - PART 3 - Game Grumps | 1,538 | | Portal 2
|
| 7. | Portal 2: Coming Together - PART 3 - Game Grumps | 1,303 | | Portal 2
|
| 8. | Portal 2: Bringing It Hard - PART 15 - Game Grumps | 1,234 | | Portal 2
|
| 9. | Portal 2: Child's Play - PART 2 - Game Grumps | 1,182 | | Portal 2
|
| 10. | Portal 2: Tender Tendencies - PART 4 - Game Grumps | 988 | | Portal 2
|
| 11. | Portal 2: Quite the Pickle - PART 16 - Game Grumps | 953 | | Portal 2
|
| 12. | Portal 2: Balls Aplenty - PART 5 - Game Grumps | 950 | | Portal 2
|
| 13. | Portal 2: Falling with Style - PART 8 - Game Grumps | 938 | | Portal 2
|
| 14. | Portal 2: You've Got The Power! - PART 10 - Game Grumps | 909 | | Portal 2
|
| 15. | Portal 2: Grinding Gears - PART 17 - Game Grumps | 882 | | Portal 2
|
| 16. | Portal 2: Good Old Fashioned Pickle - PART 9 - Game Grumps | 869 | | Portal 2
|
| 17. | Portal 2: Quick on the Draw - PART 19 - Game Grumps | 804 | | Portal 2
|
| 18. | Portal 2: Overcomplicating - PART 18 - Game Grumps | 794 | | Portal 2
|
| 19. | Portal 2: Leap of Faith - PART 7 - Game Grumps | 789 | | Portal 2
|
| 20. | Portal 2: Can't Hold Back! - PART 28 - Game Grumps | 745 | | Portal 2
|
| 21. | Portal 2: Jumping for Joy - PART 6 - Game Grumps | 737 | | Portal 2
|
| 22. | Portal 2: Brain Power - PART 21 - Game Grumps | 729 | | Portal 2
|
| 23. | Portal 2: Reverse Cyborgs - PART 11 - Game Grumps | 705 | | Portal 2
|
| 24. | Portal 2: Friendship Portals - PART 31 - Game Grumps | 679 | | Portal 2
|
| 25. | Portal 2: Head Scratcher - PART 29 - Game Grumps | 648 | | Portal 2
|
| 26. | Portal 2: Maximum Spikeage - PART 22 - Game Grumps | 623 | | Portal 2
|
| 27. | Portal 2: Breaking Through - PART 20 - Game Grumps | 621 | | Portal 2
|
| 28. | Portal 2: A Farty Party - PART 24 - Game Grumps | 611 | | Portal 2
|
| 29. | Portal 2: Feeling Barfy - PART 30 - Game Grumps | 590 | | Portal 2
|
| 30. | Portal 2: Clean and Barfy - PART 12 - Game Grumps | 574 | | Portal 2
|
| 31. | Portal 2: Grab the Balls! - PART 13 - Game Grumps | 564 | | Portal 2
|
| 32. | Portal 2: Doing Bro Stuff - PART 23 - Game Grumps | 535 | | Portal 2
|
| 33. | Portal 2: Tubin' to the Max - PART 27 - Game Grumps | 520 | | Portal 2
|
| 34. | Portal 2: Getting Closer! - PART 25 - Game Grumps | 515 | | Portal 2
|
| 35. | Portal 2: Deadly Laser Adventure - PART 14 - Game Grumps | 450 | | Portal 2
|
| 36. | Portal 2: Goop It Up! - PART 26 - Game Grumps | 448 | | Portal 2
|
| 37. | Best of Portal 2 - Game Grumps Compilations | 284 | | Portal 2
|
