| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| portal 2 co-op guide | 1.87 | 0.8 | 5400 | 46 |
| co op portal 2 guide | 1.73 | 0.8 | 9916 | 19 |
| portal 2 co op commands | 1.48 | 0.3 | 4772 | 82 |
| portal 2 co op levels | 0.66 | 0.7 | 966 | 50 |
| portal 2 co op 3-8 | 0.07 | 0.3 | 7156 | 2 |
| portal 2 co op mods | 0.82 | 1 | 61 | 46 |
| is portal 2 co op | 0.82 | 0.8 | 7837 | 92 |
| does portal 2 have local co op | 0.43 | 0.1 | 3024 | 89 |
| portal 2 walkthrough co op | 1.09 | 0.6 | 9729 | 91 |
| portal 1 in portal 2 coop | 1.19 | 0.5 | 438 | 35 |
| portal 2 coop level 2 | 1.34 | 0.8 | 6096 | 47 |
| portal 2 coop tutorial | 0.46 | 0.3 | 9253 | 79 |
| portal 2 online coop | 1.47 | 0.3 | 7243 | 65 |
| how to play portal 2 coop | 0.34 | 0.6 | 3722 | 53 |
| how portal 2 coop works | 1 | 0.4 | 5727 | 7 |
| does portal 2 have coop | 1.39 | 0.6 | 4055 | 32 |
| portal 2 coop mode | 1.43 | 0.5 | 1712 | 17 |
| portal 2 coop 2-8 | 0.15 | 0.1 | 7312 | 90 |
| portal 2 online co op | 1.79 | 0.3 | 4940 | 23 |
| portal 2 co-op walkthrough | 0.96 | 0.7 | 3876 | 23 |
| portal 2 co-op mods | 1.36 | 0.4 | 6309 | 65 |
| portal 2 co-op levels | 0.71 | 0.8 | 7400 | 53 |
| portal 2 local co-op | 1.72 | 0.4 | 5108 | 87 |
| is portal 2 co-op | 0.69 | 0.7 | 1815 | 62 |
| portal 2 co-op ending | 1.66 | 0.6 | 8839 | 50 |
