There are two aspects to the Wii version of
Spider-Man 3 that makes it really stand out. One is the way the game handles the Black Suit; the other is, of course, its controls.
First the suit. Once you get the ability to wear it, you can put it on and take it off at will. While wearing the suit, you jump higher, you are stronger and your attacks are much more effective. But, there is a downside. The more you attack with the suit, the more control it gains over you. Eventually, blackness seeps in around the edges of your screen and while your attacks are getting stronger, you are on the verge of passing out and failing your mission. The other interesting aspect of this mechanic is that you can't just take the suit off. When you want to remove it, you have to shake your Wii-mote and Nunchuck in certain ways to "shake it off."
Which brings me to the controls. Like most Wii games, I found it took a bit of time to get used to them, but when I did, swinging around the city and attacking crooks became very natural and just felt right. In order to swing, you hold down the (B) or (Z) button and shake the corresponding controller. So, if you want to swing with your left hand, you hold down the (Z) and shake the Nunchuck. Then you can shoot web out with your other hand and continue your swing. Also, there are a ton of fighting moves that rely on waggling one hand or the other while pressing buttons, and while it sounds like this is hard to manage, it doesn't take long at all before you are taking down the likes of Lizard and New Goblin.
Spider-Man 3 fits a mixed audience. Fans of the hero should check out this title because of its different interpretation of the movie (not to mention the hand-motions that make you feel like you are web-swinging) and players who fit into the more casual genre should give it a try because it isn't as scary as the same game for the other systems.