| 401. | Portal 2 Workshop - Old Portal Chamber 41 | 8:09 | | Portal 2
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| 402. | Portal 2 Workshop - Laser Jump, Faith and Destroyed Faith | 8:08 | | Portal 2
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| 403. | Portal 2 Workshop - Sendification #12 | 8:08 | | Portal 2
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| 404. | Portal 2 Workshop - The Lobbyist 2 | 8:07 | | Portal 2
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| 405. | Portal 2 Workshop - Interaction with Faith Plates, Funnels, Crushers and Platforms | 8:07 | | Portal 2
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| 406. | Portal 2 Workshop - Wheatley's Reprisal Part 3 | 8:06 | | Portal 2
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| 407. | Portal 2 Workshop - Old Portal Season 2 Chambers 00-04 | 8:04 | | Portal 2
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| 408. | Portal 2 Workshop - The Mouse Trap | 8:01 | | Portal 2
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| 409. | Portal 2 Workshop - You and Your Companion Cube | 7:58 | | Portal 2
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| 410. | Portal 2 Workshop - Distant Ruins | 7:56 | | Portal 2
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| 411. | Portal 2 Workshop - Force Field Fiesta | 7:56 | | Portal 2
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| 412. | Portal 2 Workshop - Portal Diversity Part 3 | 7:55 | | Portal 2
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| 413. | Portal 2 Workshop - Happy Birthday, Portal 2! | 7:54 | | Portal 2
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| 414. | Portal 2 Workshop - The Science Begins Here #4 | 7:54 | | Portal 2
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| 415. | Portal 2 Workshop - Moonbase Luna-C 04: Newton's First Law | 7:51 | | Portal 2
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| 416. | Portal 2 Workshop - 3 Cubed | 7:48 | | Portal 2
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| 417. | Portal 2 Workshop - Old Portal Chamber 38 | 7:46 | | Portal 2
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| 418. | Portal 2 Workshop - Patience | 7:46 | | Portal 2
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| 419. | Portal 2 Workshop - Renewed Test Initiative #15 and 16 | 7:44 | | Portal 2
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| 420. | Portal 2 Workshop - The Climb | 7:43 | | Portal 2
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| 421. | Portal 2 Workshop - Renewed Test Initiative #10 and 11 | 7:42 | | Portal 2
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| 422. | Portal 2 Workshop - Aperture Science Arcade Style | 7:42 | | Portal 2
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| 423. | Portal 2 Workshop - Enigma Protocol Chapters 2 and 3 | 7:42 | | Portal 2
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| 424. | Portal 2 Workshop - Cubes To Go | 7:41 | | Portal 2
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| 425. | Portal 2 Workshop - Back in the Saddle | 7:40 | | Portal 2
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| 426. | Portal 2 Workshop - Evaluation Unit 02 | 7:37 | | Portal 2
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| 427. | Portal 2 Workshop - Discouragement Fizzler | 7:37 | | Portal 2
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| 428. | Portal 2 Workshop - Do Back Burn | 7:36 | | Portal 2
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| 429. | Portal 2 Workshop - Renewed Test Initiative #12 and 13 | 7:35 | | Portal 2
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| 430. | Portal 2 Workshop - Toxocariasis | 7:33 | | Portal 2
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| 431. | Portal 2 Workshop - Time Travel Concept Puzzles | 7:33 | | Portal 2
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| 432. | Portal 2 Workshop - The Long Way Around 1 and 2 | 7:32 | | Portal 2
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| 433. | Portal 2 Workshop - Chainbuilder (Revamp) | 7:32 | | Portal 2
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| 434. | Portal 2 Workshop - Magnetic | 7:32 | | Portal 2
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| 435. | Portal 2 Workshop - Laser Crossing and Static Pressure | 7:30 | | Portal 2
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| 436. | Portal 2 Workshop - Think and Win 3 | 7:30 | | Portal 2
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| 437. | Portal 2 Workshop - Fly Away | 7:30 | | Portal 2
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| 438. | Portal 2 Workshop - Evaluation Unit 01 | 7:29 | | Portal 2
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| 439. | Portal 2 Workshop - Multiplex Velocity | 7:25 | | Portal 2
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| 440. | Portal 2 Workshop - Gate | 7:24 | | Portal 2
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| 441. | Portal 2 Workshop - Wheatley's Reprisal Part 2 | 7:23 | | Portal 2
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| 442. | Portal 2 Workshop - How Does One Catch a Laser Exactly? | 7:21 | | Portal 2
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| 443. | Portal 2 Workshop - Don't Make Lemonade | 7:20 | | Portal 2
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| 444. | Portal 2 Workshop - Sendificate Part 1 | 7:19 | | Portal 2
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| 445. | Portal 2 Workshop - Cave Johnson's (Amalgamation!) | 7:17 | | Portal 2
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| 446. | Portal 2 Workshop - Access | 7:15 | | Portal 2
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| 447. | Portal 2 Workshop - Portal Constraints | 7:14 | | Portal 2
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| 448. | Portal 2 Workshop - Introduction to Reflection Gel | 7:12 | | Portal 2
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| 449. | Portal 2 Workshop - The Tractor Beam Switch | 7:11 | | Portal 2
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| 450. | Portal 2 Workshop - Antares, The Awakening | 7:10 | | Portal 2
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| 451. | Portal 2 Workshop - Moonbase Luna-C 03: One Small Step | 7:01 | | Portal 2
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| 452. | Portal 2 Workshop - This is Probably Too Easy 2 | 6:58 | | Portal 2
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| 453. | Portal 2 Workshop - Up and Down (Advanced Series) | 6:57 | | Portal 2
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| 454. | Portal 2 Workshop - The Lobbyist 4 | 6:57 | | Portal 2
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| 455. | Portal 2 Workshop - A Different Way of Momentum | 6:56 | | Portal 2
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| 456. | Portal 2 Workshop - Collective Scrutiny | 6:55 | | Portal 2
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| 457. | Portal 2 Workshop - Renewed Test Initiative #17 - Timed | 6:55 | | Portal 2
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| 458. | Portal 2 Workshop - Leveled Test Chamber | 6:54 | | Portal 2
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| 459. | Portal 2 Workshop - The Long Way Around 5 | 6:50 | | Portal 2
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| 460. | Portal 2 Workshop - Crossroads | 6:50 | | Portal 2
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| 461. | Portal 2 Workshop - Bobby Corp. Test #06 | 6:48 | | Portal 2
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| 462. | Portal 2 Workshop - A Warm Test #3 | 6:47 | | Portal 2
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| 463. | Portal 2 Workshop - Portals Through Time Intro | 6:44 | | Portal 2
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| 464. | Portal 2 Workshop - A Warm Test #6 | 6:42 | | Portal 2
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| 465. | Portal 2 Workshop - Old Portal Season 2 Chamber 52 | 6:40 | | Portal 2
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| 466. | Portal 2 Workshop - Overhaul | 6:36 | | Portal 2
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| 467. | Portal 2 Workshop - A Warm Test #4 | 6:33 | | Portal 2
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| 468. | Portal 2 Workshop - Up and Down Story Part 1 | 6:32 | | Portal 2
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| 469. | Portal 2 Workshop - The Organic Tests | 6:31 | | Portal 2
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| 470. | Portal 2 Workshop - Aperture Test Initiative #2 - Propulsion | 6:29 | | Portal 2
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| 471. | Portal 2 Workshop - Fork | 6:28 | | Portal 2
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| 472. | Portal 2 Workshop - Advancement #1 and 2 | 6:27 | | Portal 2
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| 473. | Portal 2 Workshop - Have Faith | 6:25 | | Portal 2
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| 474. | Portal 2 Workshop - Advancement #3 - Tri-Angular | 6:25 | | Portal 2
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| 475. | Portal 2 Workshop - A Theory on Levitation | 6:23 | | Portal 2
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| 476. | Portal 2 Workshop - Compact Chamber | 6:22 | | Portal 2
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| 477. | Portal 2 Workshop - Bobby Corp. Test #02 | 6:22 | | Portal 2
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| 478. | Portal 2 Workshop - Laserful Recall | 6:21 | | Portal 2
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| 479. | Portal 2 Workshop - Paint_Spots | 6:20 | | Portal 2
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| 480. | Portal 2 Workshop - Emancipation Junction | 6:20 | | Portal 2
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| 481. | Portal 2 Workshop - Refreshing Course 3 | 6:18 | | Portal 2
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| 482. | Portal 2 Workshop - Enigma Protocol Chapter 1 | 6:16 | | Portal 2
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| 483. | Portal 2 Workshop - False Walls | 6:13 | | Portal 2
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| 484. | Portal 2 Workshop - Enigma Protocol Chapter 5 | 6:13 | | Portal 2
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| 485. | Portal 2 Workshop - Curious Chamber 1 | 6:11 | | Portal 2
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| 486. | Portal 2 Workshop - Old Portal Chamber 37 | 6:07 | | Portal 2
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| 487. | Portal 2 Workshop - Moonbase Luna-C 01 and 02 | 6:07 | | Portal 2
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| 488. | Portal 2 Workshop - Lasers and Flight | 6:04 | | Portal 2
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| 489. | Portal 2 Workshop - Easy Way Out | 6:03 | | Portal 2
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| 490. | Portal 2 Workshop - One Cube for All! | 6:02 | | Portal 2
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| 491. | Portal 2 Workshop - Position | 6:02 | | Portal 2
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| 492. | Portal 2 Workshop - It's Easy! :) | 6:01 | | Portal 2
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| 493. | Portal 2 Workshop - Barriers: Definitive and Bobby Corp. Test #01 | 5:57 | | Portal 2
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| 494. | Portal 2 Workshop - Binary Labs 6: Bridges | 5:56 | | Portal 2
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| 495. | Portal 2 Workshop - No More Portals | 5:56 | | Portal 2
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| 496. | Portal 2 Workshop - Odyssey Part 2 | 5:55 | | Portal 2
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| 497. | Portal 2 Workshop - Reversal | 5:53 | | Portal 2
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| 498. | Portal 2 Workshop - R2: Where to Begin? | 5:53 | | Portal 2
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| 499. | Portal 2 Workshop - Up and Down Story Part 3 | 5:52 | | Portal 2
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| 500. | Portal 2 Workshop - Build a Bridge and Get Over It | 5:49 | | Portal 2
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