Nintendo's Wii^TM video game system (pronounced "we") is designed to attract people, regardless of their age or video game experience, to sit down and play together--whether they're in the same room or on different sides of the globe. The system's name reflects this simple idea. It's easily pronounced in a variety of languages, and the distinctive spelling suggests two players side by side. The two Wii features Nintendo thinks will create new levels of gaming community are built-in Wi-Fi access, supported by a new online gaming service, and Wii's intuitive, wireless, motion-sensitive game controller.

Wii Fit is a video game developed by Nintendo for the Wii console. It is an exercise game consisting of activities utilizing the Wii Balance Board peripheral.

The balance board measures a user's weight and center of balance. The software can then calculate the user's body mass index when told of his or her height. The training currently has roughly 40 different activities, including yoga poses, push ups, strength, balance and aerobic exercises. Furthermore, Wii Fit allows its players to compare their fitness by using Wii Fit's own channel on the Wii Menu. The game tracks a user's "Wii Fitness Age" through a body test basing the result on the user's current age, weight, and balance.

Training on Wii Fit is divided into four categories: yoga, strength training, aerobics, and balance games. The activities provide a core workout, emphasizing controlled movements rather than overexertion.New activities can be unlocked by gaining "Fit Credits", which are accumulated in the "FitBank", a small piggy bank dedicated to keep track of time spent on Wii Fit. Minutes of Fit Credits are equal to the number of minutes doing an activity rather than the number of minutes of overall game play. At certain stages, new yoga poses or muscle workouts are unlocked based on the total time spent working out. Being the best at an activity with a 100% score, or playing an activity a certain number of times unlocks more rigorous versions of that activity.