| 1. | Portal 2 Tests: Into the Multiverse: Part 1 | 6,298 | Let's Play | Portal 2
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| 2. | Portal 2 Tests: Into the Multiverse: Part 3 | 3,270 | | Portal 2
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| 3. | Portal 2 Tests: Into the Multiverse: Part 2 | 2,720 | Let's Play | Portal 2
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| 4. | You Monster... - Portal Stories: Mel #15 (The End) | 2,661 | | Portal 2
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| 5. | Portal 2 #9 (End) — The Part Where He Kills Me | 2,366 | | Portal 2
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| 6. | Portal 2 Tests: Wheatley's Detour | 2,209 | | Portal 2
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| 7. | Portal 2 Tests: Into the Multiverse: Part 5 | 2,012 | | Portal 2
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| 8. | Portal 2 Tests: Into the Multiverse: Part 4 | 1,998 | | Portal 2
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| 9. | Portal 2 Tests: Into the Multiverse: Part 6 | 1,725 | | Portal 2
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| 10. | Portal 2 Tests: Timeless | 1,644 | | Portal 2
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| 11. | Portal 2 Tests: Into The Multiverse Part 7 — The WORST kind of test! | 1,600 | | Portal 2
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| 12. | Portal Stories: Mel #1 (Portal 2 Mod) — Good Night | 1,552 | | Portal 2
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| 13. | Portal 2 Tests: No Money For Chambers | 1,499 | | Portal 2
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| 14. | Aperture Tag #1 (Portal 2 Mod) — Scientist or Artist? | 1,392 | | Portal 2
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| 15. | Portal 2 Tests: Without Portalgun (1/3) | 1,387 | | Portal 2
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| 16. | Portal 2 Tests: Designed For Danger (4/4) | 1,385 | | Portal 2
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| 17. | Portal 2 Tests: Designed For Danger (1/4) | 1,326 | | Portal 2
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| 18. | Portal 2 Tests: Double Cross | 1,131 | | Portal 2
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| 19. | Portal Stories: Mel #2 (Portal 2 Mod) — Old Reliable | 1,097 | | Portal 2
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| 20. | Portal 2 Tests: Lab Rat Theory | 1,074 | | Portal 2
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| 21. | Portal 2 Tests: Impossible Geometry | 1,040 | | Portal 2
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| 22. | Portal 2 Tests: 12 Angry Tests (1/4) | 1,024 | | Portal 2
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| 23. | Portal 2 #1 — A Piece of Cake | 1,004 | | Portal 2
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| 24. | Portal 2 Tests: Cosmogony (1/2) | 958 | | Portal 2
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| 25. | Portal 2 Tests: Telekinesis | 953 | | Portal 2
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| 26. | Portal 2 Tests: Superman on Steroids | 952 | | Portal 2
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| 27. | Portal 2 Tests: Cubi | 945 | | Portal 2
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| 28. | Portal 2 Tests: Designed For Danger (3/4) | 933 | | Portal 2
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| 29. | Portal 2 Tests: Wheatley's Sequel | 912 | | Portal 2
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| 30. | Announcements: NEW Channel, Portal 2 Co-op, New Solo Let's Play! | 900 | Let's Play | Portal 2
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| 31. | Portal 2 Tests: Without Portalgun (2/3) | 881 | | Portal 2
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| 32. | Portal 2 Tests: 12 Angry Tests (4/4) | 847 | | Portal 2
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| 33. | Portal 2 Tests: Discouragement Fizzler | 841 | | Portal 2
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| 34. | Portal 2 Tests: Above Aperture (1/3) | 839 | | Portal 2
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| 35. | Portal 2 Tests: Looking Up | 837 | | Portal 2
|
| 36. | Aperture Tag #2 (Portal 2 Mod) — Thinking Without Portals | 835 | | Portal 2
|
| 37. | Portal Stories: Mel #6 (Portal 2 Mod) — Beyond My Range of Hearing | 831 | | Portal 2
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| 38. | Portal 2 Tests: Perpetual Painting Initiative | 829 | | Portal 2
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| 39. | Portal 2 Tests: Office Prank: Part 3 (Horror Community Map) | 827 | | Portal 2
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| 40. | Portal 2 Tests: Echoes | 816 | | Portal 2
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| 41. | Portal 2 Tests: Wheatley's Deatour V2 | 792 | | Portal 2
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| 42. | Portal 2 Tests: Built Without Brains | 785 | | Portal 2
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| 43. | Portal 2 Tests: Office Prank: Part 1 (Horror Community Map) | 779 | | Portal 2
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| 44. | Portal 2 Tests: Yin and Yang | 773 | | Portal 2
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| 45. | Portal 2 Tests: Cosmogony (2/2) | 767 | | Portal 2
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| 46. | Portal 2 Tests: 12 Angry Tests (2/4) | 766 | | Portal 2
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| 47. | Portal 2 Tests: Sketches | 754 | | Portal 2
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| 48. | Portal Stories: Mel #3 (Portal 2 Mod) — Secrets | 753 | | Portal 2
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| 49. | Portal Stories: Mel #4 (Portal 2 Mod) — Soldier of Science | 749 | | Portal 2
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| 50. | Portal 2 Tests: 12 Angry Tests (3/4) | 749 | | Portal 2
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| 51. | Portal 2 Tests: Pinball Machine INSIDE Portal 2! | 747 | | Portal 2
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| 52. | Portal 2 Tests: Supposed To Go At An Angle | 727 | | Portal 2
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| 53. | Portal 2 Tests: Laser Launch | 725 | | Portal 2
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| 54. | Portal 2 Tests: The Maze of Destiny | 713 | | Portal 2
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| 55. | Portal 2 Tests: Without Portalgun (3/3) | 696 | | Portal 2
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| 56. | Portal Stories: Mel #7 (Portal 2 Mod) — Newly Enriched | 694 | | Portal 2
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| 57. | Portal 2 Tests: Filtered Testing (1/2) | 692 | | Portal 2
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| 58. | Aperture Tag #7 (Portal 2 Mod) — GOTTA GO FAST | 679 | | Portal 2
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| 59. | Portal 2 Tests: Abandoned Science | 679 | | Portal 2
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| 60. | Portal Stories: Mel #8 (Portal 2 Mod) — Laser Guided Companion | 666 | Guide | Portal 2
|
| 61. | Aperture Tag #3 (Portal 2 Mod) — Relive | 665 | | Portal 2
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| 62. | Portal 2 Tests: Batcature Laboratories: Part 1 | 652 | | Portal 2
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| 63. | Aperture Tag #4 (Portal 2 Mod) — Apples and Oranges | 650 | | Portal 2
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| 64. | Portal Stories: Mel #11 (Portal 2 Mod) — Botany Blocks Bad Bot's Behavior | 649 | | Portal 2
|
| 65. | Portal Stories: Mel #5 (Portal 2 Mod) — This Sign is Radioactive | 644 | | Portal 2
|
| 66. | Portal 2 Tests: Ecks Test Chamber | 634 | | Portal 2
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| 67. | Portal Stories: Mel #9 (Portal 2 Mod) — Flung | 633 | | Portal 2
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| 68. | Portal 2 Tests: Moonbase Luna-C (1/5) | 633 | | Portal 2
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| 69. | Portal Stories: Mel #10 (Portal 2 Mod) — Third Time's the Charm | 632 | | Portal 2
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| 70. | Portal 2 Tests: Transfer | 620 | | Portal 2
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| 71. | Portal 2 Tests: Bridge Burning | 620 | | Portal 2
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| 72. | Portal HIGHLIGHTS | 618 | Let's Play | Portal 2
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| 73. | Portal 2 Tests: Permutations | 614 | | Portal 2
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| 74. | Portal Stories: Mel #12 (Portal 2 Mod) — Hoopy | 600 | | Portal 2
|
| 75. | Portal 2 Tests: Electrophobia (1/2) (Co-op) | 600 | | Portal 2
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| 76. | Aperture Tag #6 (Portal 2 Mod) — This Was Not Meant to Be | 597 | | Portal 2
|
| 77. | Portal 2 Tests: Office Prank: Part 2 (Horror Community Map) | 595 | | Portal 2
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| 78. | Portal 2 Tests: Broken Neurons (Co-op) | 593 | | Portal 2
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| 79. | Portal 2 Tests: Behind The Waterfall | 588 | | Portal 2
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| 80. | Portal Stories: Mel #14 (Portal 2 Mod) — Journey of Upwardness | 584 | | Portal 2
|
| 81. | Aperture Tag #5 (Portal 2 Mod) — Kindergarten is in Session | 547 | | Portal 2
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| 82. | Portal Stories: Mel #13 (Portal 2 Mod) — Air Lock | 536 | | Portal 2
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| 83. | Portal 2 Tests: Downstairs | 532 | | Portal 2
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| 84. | Portal 2 Tests: Moonbase Luna-C (5/5) | 527 | | Portal 2
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| 85. | Aperture Tag #8 (Portal 2 Mod) — The Truman Show | 524 | Show | Portal 2
|
| 86. | Portal 2 Tests: Filtered Testing (2/2) | 515 | | Portal 2
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| 87. | Aperture Tag #9 (Portal 2 Mod) — My Science! | 510 | | Portal 2
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| 88. | Portal 2 Tests: The Winter Testing Initiative (1/2) | 503 | | Portal 2
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| 89. | Aperture Tag #10 (Portal 2 Mod) — The Citranium is a Lie | 491 | | Portal 2
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| 90. | Portal 2 #5 — Bring Your Daughter To Work Day | 481 | | Portal 2
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| 91. | Portal 2 Tests: Above Aperture (3/3) | 480 | | Portal 2
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| 92. | Portal 2 #8 — Paradox | 480 | | Portal 2
|
| 93. | Portal 2 Tests: Electrophobia (2/2) (Co-op) | 470 | | Portal 2
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| 94. | Portal 2 Tests: Above Aperture (2/3) | 469 | | Portal 2
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| 95. | Portal 2 Tests: Don't Make Lemonade | 463 | | Portal 2
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| 96. | Portal 2 #2 — So Salty | 463 | | Portal 2
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| 97. | Portal 2 #6 — I'M A POTATO | 458 | | Portal 2
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| 98. | Portal 2 #7 — Combustible LEMONS? | 455 | | Portal 2
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| 99. | Aperture Tag #11 (Portal 2 Mod) — Wormhole | 451 | | Portal 2
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| 100. | Portal 2 Tests: Rube Goldberg | 447 | | Portal 2
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