Top 100 Portal 2 Videos With The Longest Duration by CSS1999
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal2 Coop With Muhammed #2 Kütle ve İvme 2/2 | 28:10 | Portal 2 | |
| 2. | Portal 2 CO-OP With Muhammed Takım Oluşturmak #1 | 27:20 | Portal 2 | |
| 3. | Portal 2 CO-OP With # 2 Muhammed Kütle ve İvme 1/2 | 26:23 | Portal 2 |