Balloon Shop / Heart Balloon Shop is the shop Buildings that's it can give a balloon to shoppers for free.
Investment (Balloon Shop) Edit
When you level up to Level.15,it will appear to your task manager for 400,000 Coins.
Investment (Heart Balloon Shop) Edit
After Investment, you will see new invest in your task manager for 1,000,000 Coins,after invest,your Balloon Shop will change to Heart Balloon Shop and the new shopper: Cupid will make an appearance to your shopping mall.
What can Balloon Shop / Heart Balloon Shop do? Edit
Even no shoppers enter shops, the current will still keep growing up for 1 coin once in a while (Heart Balloon Shop will grow up coins faster)