Authenticator is the latest puzzle game for MGS Online. Put your visual and memory skills to the test. Compare two pictures and spot up to five differences within an allocated timeframe. Hurry, the clock's ticking!

This 2D online game can be played on your own or against a friend. Challenge your friend to a game and see who spots all the differences first. In online two-player mode, the first player to spot 3 differences in each picture wins. Differences are generated randomly so each picture can be played again. An endless number of new pictures are downloadable. Choose your picture from an assortment of themes and challenge everyone. Start downloading now! The fastest player wins!

Your game package will include our newly upgraded MGS version 2.X which allows you to go online and challenge other players from around the world to your favorite games! Once you have successfully registered, you can login and download and play a multitude of MGS Online games for free!

Note: you will be responsible for data usage fees as levied by your service provider.