You can destroy a brick simply by clicking on it. Each time you destroy a brick, the adjacent bricks of the same colour will also be destroyed. If there aren't any adjacent bricks of the same colour, you can only destroy that single brick and you will lose a star. If you run out of stars you will no longer be able to remove single bricks. If there are only single bricks left and you have used all your stars, then the game is over. You can score higher if you can remove a large number of bricks at the same time. Enjoy!