Click on the crystals that appear from the top, bottom, left, and right to spark to destroy them. If you spark the crystal, you will get points. You can get a high score by sparking the same or similar color as the small crystal displayed at the top of the screen. Also, the color of the crystal at the top of the screen changes over time. Spark the crystal within the time limit and aim for a high score. There is also a net ranking function, and you can compete with other users for points. You can aim for the top of the ranking. Have fun playing this game here at Y8.com!