The elephant grants children various badges as they use the app - for things like reaching certain account balances, completing missions, visiting all of the habitats, achieving wishes, and signing out safely. In the elephant habitat, you can see all the badges you’ve achieved, and those that are still ‘locked’ (not yet achieved).
The badges that are shown with a lock next to them are those badges that have not yet been earned (ie they still need to be unlocked). The child has to complete certain actions to achieve each badge. The detailed description of the badge, and what one needs to do to earn it, are available when tapping on each badge.
To return to the main map, select the ‘back’ icon on the top left of the screen.