Karlie Yeung writes for NWR:
"My first thoughts when I saw Wii Fit running is how similar the concept is to Brain Age. It's also obvious that Wii Fit is ideally intended as a unit for a multiple-person household in which each member can use the system at different times of day. Data for each person is stored in a profile, and you enter information including height and age so that your BMI can be calculated. This health metric is used to measure your daily progress. Graphs show the statistics for each person such as BMI, game time, and goal BMI if you choose to set one. Your Mii is used to represent you in each game and the size of the Mii's body changes depending on BMI score."