Link's Crossbow Training is a game released for the Wii in Novermber of 2007 in the US. It comes bundled free with the purchase of a Wii Zapper, a gun-like shell for the system's controller.
The game is a spinoff of Twilight Princess for the Wii. The game is based around a series of nine stages of three levels each. The three main types of stages are target practice, which is a stationary target shoot, defender, where you can rotate freely in place, and defender, where you can move freely with the analog stick.
The game is good and has good variety, but its biggest flaw is that its just really short. You'll be done with everything the game has to offer in just 2 or 3 hours. However, it's a free pack-in, and I've found that it's great for attracting people to the Wii. You might want to pick it up if you like shooters.