
Nintendo Wii remote
The Nintendo Wii remote works together with the accelerometers inside the console as well having IR diodes that pinpoint where the remote is pointing on the TV screen. You can do whaterver you want: twist, turn, flick or jump - the device will identify your movements.
Nintendo Motion Plus
Nintendo Motion Plus it's a device that enhance the motion detection of the Wii remote in order to emulate player's movements to almose 1:1 accuracy in the game.
Wireles sensor bar for the Nintendo Wii
You'll need some batteries for the wireles sensor bar for the Nintendo Wii, actually you'll need lots and lots of batteries if you are a Wii long time player. The best thing about wireless stuff, including the sensors, that you don't have to worry about the cables when you are on the move - and, of course, you want to play along your friends.
Nintendo Wii steering wheel
It's not easy (I would say it's rather hard) to play games with cars and chases without using a Nintendo Wii steering wheel. Or a wheel in general (there are some brands that offer you this accesory, but for the moment let's set for the Nintendo products). It's more funny in this way.
Nintendo balance board
The balance board was introduced with the game Wii Fit (as I understand it's still only availabe when people are buying the games Wii Fit and Wii Fit Plus) and it allows people to do more than playing on Nintendo consoles (like dodge blows, skateboard and snowboard).
Nyko charge static IC
As I said before, you'll need a lot of batteries if you are a long time Nintendo gamer. You can avoid buying batteries every other day (or so) if you chose to by a batter charger. As I understand, Nyko is one of the best manufactures of chargers, you can use the products to recharge the batteries for your Wii remote and other devices.