The original GameCube version of Resident Evil 4 was universally considered to be the best game of 2005. It completely reinvented what had begun to be a fairly stale series, in the process becoming one of the most accomplished third person action games ever seen and certainly the most cinematic. The subsequent PlayStation 2 port did a very good job of almost matching the graphical quality of the GameCube version, while also adding in a number of extra features, including an extra five bonus chapters as the mysterious Ada Wong.
This new Wii version is essentially a combination of the two previous games, with new motion controls added in. The means you get the superior graphics of the GameCube version (now in 16:9 widescreen for the first time) and all the extras from the PlayStation 2 games, including the Separate Ways bonus sections with Ada.
Although no ones going to complain about all of the above (especially as the GameCube version is now very difficult to get a hold of new) the big question is how the controls work on the Wii remote. The answer is surprisingly well, with the remote used to aim directly on screen like a light gun and the nunchuk employed for moving around. Its not too dissimilar to The Legend of Zelda: Twilight Princess and proves again that the Wii can handle games with more complex controls perfectly well if called upon. All of which means this is the definitive version of what is unquestionably one of the very best action games ever made.