- You will be given a random number (target number) at the start of the game.
- There are four crystals below. By clicking on a crystal you will add a specific amount of points to your number.
- You win the game by matching your total score to the target number. You lose the game if your total score goes above the target number.
- The value of each crystal is hidden from you until you click on it.
- Each time when the game starts, the game will change the values of each crystal.