Unlocking Exercises
When you first start playing Wii Fit, only a certain number of exercises are unlocked and available for you to play. Nintendo's website explains that you have "fit credits" that add up as you play the game. These credits unlock additional exercises as well as increased levels of difficulty, repetitions or time within exercises. In strength training, you can unlock longer workouts or more repetitions in the jackknife, parallel stretch and push-up challenges. You can also unlock longer workouts in some of the aerobic exercises, such as jogging and free step.
Extras to Unlock
As you perform body tests where you weigh yourself and see how fit your body is, you unlock stamps. These are stamps you put on your calendar to track your workouts and goals. Overall, you can unlock eight different designs. You can also change the color of your Fit Piggy, the piggy bank that tracks your workout time. After 10 hours of training it turns bronze, after 20 it turns silver and after 40 it turns gold.
Secrets
The jogging courses contain secrets even after you have unlocked all of them. In the short course, long course and island lap jogging games, you can leave your jogging guide and chase the dogs that jog near you. When you follow the dogs, they will take you on a new route with different scenery than you are used to.
Wii Fit Plus
When you have unlocked everything on "Wii Fit," you can advance to "Wii Fit Plus." "Wii Fit Plus" gives you all the same activities of "Wii Fit" but adds six new strength and yoga exercises and 15 new "Training Plus" exercises. It also gives you new levels to unlock. Unlike "Wii Fit," in "Wii Fit Plus" you can make personalized workouts or choose customized ones to reach certain goals, such as warming up or exercises for your shoulders and back. This updated game shows you the number of calories you burn doing each activity and the total for your whole workout.