Morph Ball

One of the oddest parts of the Metroid series has been the Morph Ball function of Samus' Power Suit, which transforms the suit into a compact, mobile sphere. In Metroid Prime, the Morph Ball switched the camera to a third-person view, and several new features were added. These all return, with practically no changes, in Metroid Prime 2: Echoes. The Bomb destroys certain objects and propels the ball into the air, and this is used to great effect in gameplay and boss battles. The Boost Ball provides a temporary increase in speed, and is useful for ascending half-pipes and rotating certain devices. New to Echoes is the ability to harm foes by boosting into them. The Spider Ball gives the ball a magnetic charge, allowing it to attach to magnetic rails in the environment. Furthermore, the Bomb and Boost features are usable on the rails, allowing for some extremely intricate platforming puzzles. Boost features were not usable on the rails in Metroid Prime. Finally, the appropriately named Power Bombs destroy even more types of objects and enemies in a very wide radius.