1) You will be given a random number at the start of the game called Target Score.
2) There are 4 crystals on the page. Each crystal is assigned an amount of points that is not displayed to you.
3) By clicking on a crystal you will add that assigned amount of points to your Current Score.
4) You win the game by matching your Current Score to the Target Score given to you at the beginning of the game.
5) You lose the game if your Current Score goes above that number.
6) Each time the game starts over, the value of the crystals will be changed.