Portal 2
2011 · Platform · Puzzle

Dr. Robotnik has stolen the Red Chaos Emerald, causing the other five to "lose balance" and scatter themselves into a parallel universe. As a result of the instability, South Island is now sinking into the ocean. It is up to Sonic and Tails to find the Chaos Emeralds and restore harmony to the universe, or else the innocent residents of South Island will find themselves taking a long swim.
Player counts are not available yet.
Multiplayer details may vary by platform. Cross-platform play is not confirmed here.






2011 · Platform · Puzzle
2017 · Platform · Adventure
1990 · Platform · Adventure
1994 · Shooter · Platform
2007 · Platform · Puzzle
1997 · Platform · Role-playing (RPG)