Metroid Prime 3 is a first-personadventure developed by Retro Studios for the Wii. It takes place after the events in Metroid Prime 2: Echoes. The first glimpse of the game was shown at Nintendo's press conference during E3 2005 where a next-gen model of Samus Aran was briefly shown as well as shots of her ship and some weird tentacle objects displayed running on the Nintendo GameCube. The game deals with the insidious substance known as Phazon taking over and corrupting the galaxy as well as Samus Aran herself. It is, of course, up to Samus to stop this from happening. This game gives a satisfying close to the Prime trilogy, where Phazon is defeated once and for all. Three other bounty hunters also join her: Ghor, Rundas, and Gandrayda.
Additions and changes
Multiple planets - Samus isn't just investigating Phazon on a single planet anymore. She now has the ability to travel between multiple planets.
Command Visor - Though she won't be able to pilot her gunship, Samus is able to use a Command Visor to send orders to her ship. It can do bombing runs, lift heavy objects, and more.
Super Metroid-style stacking - A fan-favorite game mechanic from Super Metroid, players can stack their weapons once again. This means they can combine and mix attributes of their beams, missiles, and even the grapple beam. Beams/missiles/grapples no longer have to be selected from a menu.
Socialization - For the first time, Samus can communicate to other characters. However, Samus herself does not talk in the game.