Top 100 Portal 2 Videos With The Longest Duration by matthewmspace
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Science Bros... with Portals! - Portal 2 Co-op | 2:53:05 | Portal 2 | |
| 2. | Pota2day - Portal 2 Single Player Part 2 | 2:31:10 | Walkthrough | Portal 2 |
| 3. | Final Acts of Co-op Stupidity! - Portal 2 | 2:08:54 | Portal 2 | |
| 4. | We're Thinking 2Day - Portal 2 Single Player Part 1 | 1:45:45 | Walkthrough | Portal 2 |
| 5. | Science Bros... with Portals! - Portal 2 Co-op | 1:32:42 | Portal 2 |