In Star Fox 64, the player controls one of the vehicles piloted by Fox McCloud, usually an Arwing, as it travels on a fixed-rail that generally moves straight forward. The player's vehicle can be maneuvered around the screen to dodge obstacles and shoot incoming enemies with laser cannons, and can also perform a somersault to get behind enemies or dodge projectiles.[4] All vehicles except the Blue Marine can also charge up their laser cannons to unleash a powerful lock-on laser. As well as the forced progression of the main game, some levels and bosses take place in "all-range mode" (available also in multiplayer battles), where the player can move freely around a rectangular arena and engage in combat with various enemies.[4] The Arwing can also perform one new maneuver in all-range mode: an Immelmann up-and-over to change direction. In-game, this is called a U-turn. You can also do an aileron roll, simply referred to throughout the game as a barrel roll, to deflect enemy projectiles.