Really like the concept, it is super original and fun! The hand-drawn visuals are incredibly characteristic and make your game stand out quite a big time from the rest I’ve seen; congrats also for the music: though a bit low by default it fits the game so well, giving away those vibes of little corner store.
I will say the controls take a little to get used to and having to use the computer with the mouse can feel an inconvience when everything else is done with the keyboard. But apart from that the gameplay is overall really fun, especially the scanning barcode minigame: on that regard it would be so cool if it got more difficult over time or the patterns changed depending on the product to scan, but I totally understand it is a lot to ask off a jam project. It is fun as it is though, so imagine the possibilities! ^-^
The last thing I’ll add is that needing to wait for the customers to take the products from the shelves can get a little boring at times, so maybe it could be a good idea to have multiple customers coming in at the same time or thieves that sometimes get in and you need to catch by watching their movements. Also, having a tight timer to buy products at midnight while also having to check the previsions for the next day is a bit anxiety-inducing, often meaning I didn’t have time to really evaluate what I already had in store and what to buy based on my money availability; it also doesn’t help that some products are not immediately recognizable, although labels like “This is SODA” are really hilarious to look at and add a lot to the fun! :)
Again, I feel this game has a lot of potential to really be amazing and it is really fun as it is, so keep up the good work! ^-^