Your goal is to remove blocks by forming the shapes indicated at the top of the screen. The shapes will be squares, or vertical/horizontal lines. Each shape is made of smaller blocks. Click the "Rotate" icons on the corners of blocks to rotate the positions of four blocks. If you get stuck, click the button at the bottom of the screen to shuffle the board. Keep moving the blocks until the target number of blocks is reached. Don't take too long though --- some levels will have a time limit.

In later levels, you'll need to form shapes where every block is the same color, matching the target colors shown below the target shapes. Some levels require removing only blocks with small circles on them, which will require a change of strategy.