Seriously do not waste your money on this 'game'.
You start by creating your 'avatar' make it look like you if you wish (sounds like a good start) then you have to put in your basics; height weight etc. It will tell you if you are over weight and by how much. Then you spend time filling in what you eat in an average day. You can pick out a pre-set meal (this is when you realise that it is an American game); or you can create a meal from scratch; picking each and every item one at a time (and boy does it take time). You have to do this for breakfast, lunch and dinner plus snacks (seven times, Mon to Sun). You then fill in your activities for each day. The game will then give you a representation of how your weight loss or gain will go over the next few months. If the details you filled in for your food intake are lower in calories per day (because you are on a diet) you will see your avatar get too thin. Hello, the majority of people know when to stop dieting!
You can also set it up to use a Wii Fit board as a set of scales.
And that is basically it! It simply lets you create a look alike and then tells you if you will loose/gain weight or stay the same. You can't use it for hints or tips or on a day to day basis. It dosent help you real time. Unless there is something on the game that I havent found.
If you need a 'friend' as it were to help you watch your food intake etc go and buy 'My Health Coach' for the Nintendo DS; a much better deal, can be used real time on a day to day basis. It gives you a realistic calory intake per day (put in what you eat when you eat it). Lots of hints, tips, quizes, progress graphs and most of all encouragemnt! My Health Coach includes a pedomiter which links to the DS so you can download your activity each day. A much, much better deal!My Health Coach: Manage Your Weight (Includes An Exclusive Pedometer) (Nintendo DS)