The first great FPS for the Wii, in the form of none other than Samus Aran.
First off the one thing everyone was wondering about for this game, were the controls. And to answer these questions, the controls are awesome in many ways. If anyone had played Red Steel and thought the controls were way to sensitive, then you'll be happy to know that the game's aiming is so much better. It's perfect for a FPS on the Wii, and is the way it should be done for all other FPS' on this system. Like in the old Metroid Prime games, you can lock on to enemies and strafe around them and shoot at the enemies, only this time, the Wiimote adds some new flare to this system. While locked on to enemies you can still free-aim with the Wiimote so you can shoot anything in the screen while strafing around a targeted enemy. This is something a little more different then the previous games since you weren't able to free-aim with the gamecube controller. This also adds another way to play the game, which is more like a Halo feel. You don't have to lock on to an enemy and you can just kill everyone using the free-aim. The game does a great job of moving the camera once your aiming reticule gets to the edge. Overall you can play the game two different ways, making the combat of the game much much better.
While adding this stuff, the game still retains the same great elements that the previous games in the series had, which are its back story, and puzzle elements. You'll find that the game's scanning is still here, and you can learn more about the great things in the environment. Although it takes a little bit of a backseat this time to the combat, since not everything has a detailed explanation. As before it would give you a complete log of whatever you were scanning, now if you want to see it, you will need to go through some menu's. The puzzle elements are still great and are difficult and fun to complete. Although most of these puzzles couldn't be completed without Samus' special abilities. This game has always had the great powers that Samus can have such as Missiles, Screw attack, and the famous morph ball. All of these things will come into play during puzzle parts, and make the game very rewarding to complete.
Along with Samus' upgrades and special abilities, this time her ship gets a little love too. The ship is a key component to completing some of the game's major puzzles. You will earn upgrades such as missiles to destroy things with, and a crane to pick up things with. This is just another addition to the puzzle solving elements of the game and is done well. The game's story is straight forward for this kinda game. Your main objective is to go to these two planets that have been attacked and have these things called Leviathan seeds. These seeds are corrupting the planets with a material called Phazon. You must destroy the seeds on the planets to save them, although the game will take you many places on the planet, and away from the planets. Samus herself early in the game is corrupted by this material as well, which gives her this special power. This power allows her to be more powerful, and makes you invulnerable for a time, although it has its downs. As you use it you lose health for it. If you use it too much you then become corrupted by it, and overload, which if your not too careful, will cause Samus to bite the dust. So although you may become all-mighty, you could end up killing yourself. Along with all of this trouble, you have the amazing boss battles. These parts will make you use everything at your disposal to defeat them. These instances cause some truly epic battles that are just so rewarding to beat. The games graphics are as good as ever, and for the first time, you are able to play them in 480p. Although not technically HD it makes the game look truly great to look at. All the worlds and places that you visit have a unique look to them that makes each one special in its own right. The games sound is great especially with the addition of voice acting. The voice acting is pretty solid, and you mainly will hear it from the people giving you your objective. It's definitely something new for the Prime games, but is done reasonably well.
This game will have you back tracking and going forward constantly. This game may take you a while to complete, but this makes every single part rewarding. This is due in part to another small bit with the emblem system. For every enemy you scan, important piece you scan, or every big objective you complete, you are rewarded with a nice emblem to show what kind of work you have been doing. There are also some cool extras in the game you can get by sending your friends vouchers. This is probably the closest thing to an achievement system on the Wii.
Overall this is a great addition to the Metroid Prime games. It certainly does it justice with the new controls, and the same old elements that made the original so great. If you own a Wii, you owe it to yourself to pick-up the best FPS available on the system.