Top 100 Portal 2 Videos With The Longest Duration by Video Game Check
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal 2 | Co-Op Playthrough Part 2. | 0:00 | Portal 2 | |
| 2. | Portal 2 | Co-Op Playthrough Part 3 | 0:00 | Let's Play | Portal 2 |
| 3. | Portal 2 | Co-Op Playthrough Part 3 [Finale] | 0:00 | Portal 2 | |
| 4. | Portal 2: Co-Op Playthrough | Part 1 | 0:00 | Portal 2 |