Piggy Bank is one of the events in Candy Crush Jelly Saga. It is only available on the mobile version.
Collect stars from levels to gain Gold Bars for the piggy bank
In this event, the player has to collect stars in each levels to convert starts into gold bars. Each star the player collects adds up to one gold bar.
After the piggy bank is full, every next star won't be added anymore. The player will be requested to pay a sum of money to open piggy bank before it resets.
In each level, each star will be counted as 2 gold bar.