Starting on the moon, travel around the galaxy collecting specimens for scientists on Earth to study. On each moon or planet, drive the crane to a plant and collect a sample. Drive the crane to the base and drop off the sample in the indicated area before driving to the next plant. You don't have to know your way around to find and deliver the samples. Just follow the arrow on the screen to get to each location. To beat a level, collect and deliver all the samples before time runs out and without wrecking your crane. Between levels, collect more samples in a jar as they fall down the screen.