The game is a memory match type of game, wherein you need to match one picture to another same picture. Now, you do understand that in this type of game, you do need to remember where are the other picture that matches the one that you see. Of course, that is not easy and it needs some time to find it. That makes a little harder since the game needs you to do it with limited time.
You’ll only progress in the next level if you can match all the pictures on time. As you go from level to level, you will notice that it the game is much difficult than before.