The Piggy Bank gives you the opportunity to buy Energy at a bargain price 💰

When the Piggy Bank appears in your game, you have several days to take advantage of the offer, after which the Piggy Bank disappears.

It gradually fills up as you clear out the obstacles on the location.  Double the amount of Energy spent on clearing out obstacles is sent to the Piggy Bank.

To find out your Piggy Bank's maximum capacity:

• Click on its icon in the upper right corner of the screen;
• Check the number on the right side of the energy slider.

In the middle you can see how much Energy you need to have in your Piggy Bank to purchase it.

Remember: the more Energy is in the Piggy Bank, the more profitable it is to open it!