The third entry in Nintendo's Metroid Prime trilogy, Metroid Prime 3: Corruption offers one of the best gameplay experiences on the Wii and illustrates the right way to implement first-person controls on the little white box.
As in previous games in the series, you step into the armormed powersuit of Samus Aran, intergalactic bounty hunter. Where Prime 3 differs from previous games is that rather than being dropped on a single world and left to your own devices, you will traverse several different areas and interact with a varied cast of characters. This increased interaction and greater emphasis on story makes the Metroid universe feel more like an actual place, and less like a cobbled-together setting for the games.
The biggest appeal to the game is the new control scheme. Using the nunchuck to move and strafe, and the Wii-mote to aim, jump, and shoot, this is as close as you are liable to get to true keyboard and mouse controls. After half an hour, movement feels incredibly smooth and natural. It is very different from the clumsy controls of the first two games. There have been several other changes to the gameplay as well. You perform context senstive actions, such as flipping switches or unplugging power cables by moving the Wii-mote in various ways, adding a greater sense of immersion. Unfortunately, with access to these new controls the difficulty seems to have taken a hit. Veteran players will breeze through the game relatively quickly unless they take advantage of one of the higher difficulty settings. Additionally, rather than exploring one large interconnected world, you will use your ship to travel between several smaller areas.
Graphically, Prime 3 is one of the best, if not the best, looking Wii game out there. It can't compare to first-person games on Microsoft and Sony's consoles, but solid art direction and creative level design will keep you engaged enough not to notice the comparison. Light and particle effects are decent, and sometimes you will be downright surprised at what the little system can pull off.
In addition to a haunting ambient score and pumping battle music, Prime 3 features surprisingly high quality voice acting. A first for the series, the voices in Prime 3 do a fantastic job immersing you into the world and making its characters feel like people rather than static cutouts. Hopefully Nintendo expands on this and incorporates it into their other flagship series (I'm looking at you, Zelda).
Prime 3 contains a number of bonuses for diligent players. In addition to harder difficulty modes, the game has a good deal of unlockable material, such as concept art, a music player, and other various goodies. Each costs a certain number of credits, which you obtain by scanning objects in the game or by completing various tasks. Some can only be unlocked by trading credits with people online.
Metroid Prime 3: Corruption is the first-person experience that Wii owners have been waiting for. While it can be completed relatively quickly, it is definitely a must-play. Recommended.