You control two shapes and can change them by touching sides of the screen or using arrow and mouse keys. You should change them so that they are the same as the incoming shapes that enter from top of the screen. You will earn score by matching correctly and going further. But you will lose if you can't match the correct shapes.
Aurora Games made this game.
This video is the solution for Matching Shapes game. Here you will find the answer for each level of the first Matching Shapes game.