If you want to keep the trains rolling down the tracks, prepare to do some heavy lifting. Of course, the crane will do most of the work. All you have to do is drive. In each level, start by driving your crane near to a piece of railroad track. Position your crane arm over the track piece and pick it up. Then drive over to the railroad tracks and drop the piece of track into place. Next, click your space bar at just the right time to align the new piece with the rest of the track. If you can handle it, the train will take off on it's journey and you can head to the next level.