Portal 2 Coop is another fun instalment of the cool and fun-addicting multiplayer online game KoGaMa. This challenge is all about teamwork. You goal is to reach as far as possible, passing through portals, that open by pressing 2 buttons simultaneously. So, for every portal to open, you will have to use the help of another player. Join the fun and find a new friend to help each other in this awesome game and discover together what’s hidden behind every portal. Enjoy Portal 2 Coop!