I have encountered some bugs:
-when I buy food, even if I select to buy 2, it gives me 1.
- I buy drinks but can not give them to my pet.
Overall, a nice idea and the game looks promising :)
Each time you buy an item of food, the price of the food doubles. If you don't have enough coins to get the second one, it won't give it to you.
Aren't the drinks for the player?