Click on the dollar to gain money based on your $PC and click on the shop icon to enter the shop. Once you're in the shop you can buy upgrades or the gold crown.
$PC-Money Per Click $PS-Money Per Second Versions 1.0-Game Released!!! 2.0-New shop item, the $+1 Bill and new $PC feature. 2.1-Fixed bug that set your money to $0. 3.0-New shop item, the Crown! Now you can get rich in a rich style B) 3.1-Fixed the fact that you could waste money on buying the crown a second time. 3.2-Made the crown cost $200 instead of $100, making it more rewarding to have.