In Route Digger you face harsh conditions in the desert where there are balls that cannot get used to such heat. Their paint can crack and peel off, so you should hide the balls deep in the sand and place each in a tube of the same color. Like himself. Dig a tunnel into the sand for each ball. They should roll freely to the right place. A corridor for one ball is easy to dig. And you try to do this when there are three or more balls. We'll have to sweat, but first of all think, so as not to make a mistake in the Route Digger.