It's a simple and fun puzzle game. You have to match the correct color rings on the row. The more correct matches you make, the higher the score you get. It's easy to play and it's pleasurable. You can challenge your friends to compare your score. The game is only for people who are 13+ years old. You can also use the rings to clear the board. There are no rules or time limits. You can play offline. It has a beautiful interface with a cool background.