In @RetroPancake's words: "A secret path lies on the cube from one side to the other. Use the arrow keys to move around the cube to discover the path. If you make a wrong move however, you go back to the start. Remember your path and retrace your way to the gold star!" This is an attempt to add mobile to this game.
Go play the original if you have the chance. @RetroPancake has already implemented my solution