Play the various balance games to earn 'Fitcash' and the Fitpiggy will do a dance and change colour when you have completed the following amount of Training time.

Unlock Bronze Fitpiggy:
Complete 10 hours of Training time.

Unlock Silver Fitpiggy:
Complete 20 hours of Training time.

Unlock Gold Fitpiggy:
Complete 40 hours of Training time.

When you complete daily Body Tests new stamps will become unlocked.

Unlock OK Stamp:
This stamp becomes unlocked when you have completed 2 Body Tests

Unlock Star Stamp:
This stamp becomes unlocked when you have completed 4 Body Tests

Unlock Heart Stamp:
This stamp becomes unlocked when you have completed 6 Body Tests.

This is done by completing the following tasks which normally means completing the previous games, reaching a certain target of reps or attending the indicated amount of body tests.

Unlock Step Plus Aerobics:
Play step Aerobics a 2-4 times.

Unlock Free Step:
Play Step Plus Aerobics 2-4 Times.

Unlock Tightrope Advanced:
Complete Normal Tightrope.

Unlock Tightrope Super Advanced:
Complete Advanced Tightrope.

Unlock Free Jogging:
Do the Island lap 2-3 times.

Unlock Longer Jogging Routes:
Play the highest one to unlock the next one up 2-4 times.

Unlock 'Ok Stamp':
Attend 2 Body Tests.

Unlock 'Star Stamp':
Attend 5 Body Tests.

Use your pointer at the 'Statistics' screen to click the balance board character which is running on a treadmill in the background and you will be given the option of participating in the 'Ultimate Balance' test.