I really like the game feel and audio/ graphics. After day 4 it got kinda boring because there is only so much interesting you can do with comparing 2 numbers with eachother. I feel like I didn't need the audio for the boxes at all and the distinction between refuse and isolate is kind of arbitrary from a logical point of view, since they both just have different weights compared to the actual weight. Lastly I feel like the font used made some numbers unclear, which feels like artificial difficulty. You could probably lean into that to make it more of an interesting idea, like actually looking on the label of the box for the weight, and then like smudging the label or something. But in your game it felt kinda accidental.