Top 100 Portal Videos With The Longest Duration by DataBlinx
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | GLaDOS Boss Battle|Portal Final Part | 34:49 | Walkthrough | Portal |
| 2. | Found Doug Rattmann Lair|Portal Part 2 | 32:17 | Portal | |
| 3. | The Puzzles Don't Get Any Easier|Portal Part 1 | 30:20 | Portal |