Sounds like a good idea to me. Shigeru Miyamoto, creator of Super Mario Brothers, had a similar half-baked idea: " As for the idea, my family and i have becom

Sounds like a good idea to me. Shigeru Miyamoto, creator of Super Mario Brothers, had a similar half-baked idea: " As for the idea, my family and i have become more health-conscious in recent years, going to the gym and tracking our weight. It becomes fun over time to talk about these things. Simply weighing yourself doesn't make much of a game, though, so we decided to build games around it that mesh with the concept. " Those games were packaged together and sold as Wii Fit. Considering 20 million copies have been sold worldwide (8+ million in the US), I'd say you're idea could have legs.