An X-ray is one of several mechanisms used during the process of cleaning Fossil Rocks. It, along with the regular hammer and drill, is initially provided in both Fossil Fighters games. It's best to use this machine as
soon as the cleaning phase starts. Using an X-ray allows the player to see the shape of the fossil inside the rock, allowing them to differentiate between what is fossil and what is merely excess rock. Although useful in almost any situation, X-rays are not capable of penetrating the surfaces of Dark Fossil Rocks.