Metroid Prime 3: Corruption is the finale to a wonderful series. However, it fails to live up to the original.
Another area this game truly excels is in the graphics department. When the game came out, it was the best looking game for the Wii. The bloom effects engine that the game runs upon really works well (espeically for areas infested with phazon). All the environments looks especially good, and they vary it up too. You'll encounter completely natural surroundings, tech/buildings, and even the inside of a living organism. Corruption manages to look great in all of these settings.
Like previous Metroid games, as you progress through the levels, you will gain various expansions that are more powerful than others. This is where Corruption fails to compete with previous installments. Unlike in other Metroids, such as the original Prime, this version does not implement 'old' beams that you pickup. Every time you upgrade your arm cannon, you have effectively replaced the previous one for the rest of the game, there is not switching back and forth. Also, certain upgrades have been eliminated or replaced (ice beam anyone?), this was also a shock and dissapointment to me.
That being said, the game is still an epic adventure and a wonderfully crafted story that continues the path that Metriod Prime started. You get to finish off Dark Samus once and for all, and you get that sense of accomplishment at the end, even though it was just a tad too easy to do it. What you get in Metroid Prime 3: Corruption is an example of how good a Wii game can be if the proper amount of time is put into production, and an example of great controls for the first person shooter. While Corruption may not be the best in the series, it is one of the best games available for the Wii, and a must have for any Wii owner.