To play you need to buy everything on the shopping list. Try to get as many shopping lists complete as possible. To start to play press the sign saying start. You can reset your scores by pressing the little reset button on the top and then press accept on the card reader.
As this game is in beta, it's still have some bugs. It has a bug where you get +1 shopping lists completed when you press the flag. If you have any ideas or you found a bug, let me know in the comments!
