How to play ? Turn on the sound or put on your headphones. Select the stone you find the most atractive. Use the keyboard arrows ; up or down, left or rigth. You are in a space without time, there is no beginning and no ending, so to come back at the menu press escape.
If at the very beginning of the game you are in a black aera and you can't move, refresh the page. You can use the games on tablet, touch once the screen and directional arrows will appear. Maybe this game will be work on your phone.