To add shop, I created variable called Exotic CPS. When you start playing, the CPS is 1. Every time you click the butter, you get one. If you upgrade, it adds one to the CPS, so then it will be 2 money per click and so on. I also did instead of if exotic clicks more t han 50, I did 49, because then it would have to be more than 50, so then you cannot buy the shop item unless you have 51 or more, so 49 would make it 50 or more.