I don't usually play download only games, but this one caught my eye. First off, beautiful artwork! Looks brilliant :D

The concept is very funny as well, those pesky barcodes never scan as they should. I think the main thing the game is lacking is progression, it got pretty repetitive after a while and I wouldve liked to see something a bit extra to spice up the gameplay like maybe some sort of interaction with the customer such as them asking for a price check or something, or maybe there's a sticker covering the barcode so you have to scratch it off. There are a lot of directions you could take this! 

Obviously there are a couple bugs, and the physics is a bit all over the place but I think there's a lot of potential here.

Good stuff :)