| Defective | Defective |
| Decades Of Science | Portal Stories: Mel Soundtrack |
| Troubled Water (trailer theme) | Portal Stories: Mel Soundtrack |
| The Best The World Had To Offer | Portal Stories: Mel Soundtrack |
| Troubled Water | Portal Stories: Mel Soundtrack |
| This Is Aperture | This Is Aperture |
| Adjacency (menu) | Portal Stories: Mel Soundtrack |
| Natural Light | Portal Stories: Mel Soundtrack |
| Natural Light (funnel) | Portal Stories: Mel Soundtrack |
| Testing With Nature | Portal Stories: Mel Soundtrack |
| Testing With Nature (funnel) | Portal Stories: Mel Soundtrack |
| Skototropism | Portal Stories: Mel Soundtrack |
| Skototropism (funnel) | Portal Stories: Mel Soundtrack |
| Halted Production | Portal Stories: Mel Soundtrack |
| Live Fire Exercise | Portal Stories: Mel Soundtrack |
| Live Fire Exercise (funnel) | Portal Stories: Mel Soundtrack |
| System Corruption | Portal Stories: Mel Soundtrack |
| System Corruption (alternate) | Portal Stories: Mel Soundtrack |
| Mel's Story | Portal Stories: Mel Soundtrack |
| Adjacency | Portal Stories: Mel Soundtrack |
| Acceleration | Portal Stories: Mel Soundtrack |
| Testing Begins | Portal Stories: Mel Soundtrack |
| Waking Up To Science (menu) | Portal Stories: Mel Soundtrack |
| Welcome To The Future | Portal Stories: Mel Soundtrack |
