Hi, I don't know if you're still working on this, but I noticed a bug where you can double the money paid if you quickly clicked on the money.
I also have some suggested features:
- A way to price the sugar, pearls, and ice
- A way to know how much sugar, pearls, and ice are in each cup
- For "F" and "H" to be changed to 1 and 1/2 (I first thought they meant "Frozen" and "Hot")
Though I found it difficult, it's a nice and cute game.