Top 100 Portal 2 Videos With The Longest Duration by Carsonist
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal 2 Co-op - Episode 2 - Mass and Velocity! | 28:31 | Show | Portal 2 |
| 2. | Portal 2 Co-op - Episode 1 - Team Building! | 20:05 | Show | Portal 2 |
| 3. | Portal 2 Co-op Campaign - Part 2 - Team Building | 16:40 | Portal 2 | |
| 4. | Portal 2 Co-op Campaign - Part 1 - Calibration Test | 10:31 | Portal 2 |