| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| portal 2 extra levels | 1.18 | 0.7 | 5401 | 16 |
| portal 2 level 8 | 1.61 | 0.5 | 846 | 71 |
| portal 2 level 2 | 0.11 | 1 | 3731 | 10 |
| how to beat portal 2 level 8 | 1.18 | 0.2 | 2384 | 33 |
| portal 2 level 6 | 1.5 | 0.2 | 2709 | 64 |
| portal 2 level 11 | 0.69 | 0.6 | 3577 | 12 |
| portal 2 level 12 | 0.02 | 0.8 | 6687 | 3 |
| portal 2 level 4 | 1.69 | 0.4 | 7715 | 32 |
| portal 2 level 3 stage 8 | 0.67 | 0.1 | 4772 | 91 |
| all portal 2 levels | 1.04 | 0.2 | 6698 | 17 |
| portal 2 level 5 | 1.59 | 1 | 6346 | 14 |
| portal 2 level 7 | 1.94 | 0.8 | 9653 | 87 |
| portal 2 level 18 | 0.18 | 0.7 | 2311 | 62 |
| portal 2 how to complete all levels | 1.84 | 0.4 | 4686 | 71 |
| portal 2 level 20 | 1.66 | 0.1 | 7525 | 13 |
| how to beat portal 2 level 18 | 1.61 | 0.1 | 5083 | 89 |
| portal 2 level 14 | 1.29 | 1 | 8522 | 3 |
| portal 2 levels list | 1.94 | 0.6 | 8175 | 96 |
| portal 2 coop extra levels | 0.1 | 0.5 | 2864 | 79 |
| portal 2 companion extra level 6 | 0.1 | 0.3 | 936 | 72 |
| portal 2 all levels | 1.45 | 0.5 | 521 | 28 |
| portal 2 multiplayer levels | 0.22 | 1 | 2947 | 100 |
| portal 2 single player levels | 0.58 | 0.2 | 4611 | 100 |
| how to beat portal 2 level 2 | 0.51 | 1 | 8483 | 62 |
| portal 2 final level | 0.24 | 0.9 | 4988 | 54 |
| portal 2 level walkthrough | 0.24 | 0.5 | 2030 | 3 |
