Samus Aran is typically seen wearing the Power Suit, a powered exoskeleton which protects her from most dangers she encounters and can be enhanced by power-ups collected during gameplay. In regard to offense, the Power Suit boasts the Arm Cannon, which can fire various energy beams, charge beams to shoot an extra-powerful blast, or launch a limited number of missiles. The Power Suit can be reconfigured into a small, spherical form called the Morph Ball, which allows her to roll through tight areas, such as tunnels, and use Bombs. It is also equipped with a Grapple Beam, which can be used to tether onto objects to cross large distances, such as chasms. Additionally, its visor can be used to scan objects to learn more about them, a feature that has been used since Metroid Prime. Aside from her Power Suit, Samus is also in possession of a Gunship, which is used in the games to save progress and restore her health and ammunition.