The first time I tried this game I just gave up after not knowing what should I do.
I decided to give it a second try though and here are my thoughts.
I don't know how to recognize which box represent electronics and which one is supposed to be toys. I just found myself in a position, where all boxes were delivered, and I was just waiting for new ones to spawn, which didn't seems so fun. To fix that, I guess the timers should be made less random? Overall I see the core of game which could be enhanced somehow. Right now it seems repetitive without any twist to make it interesting. Maybe some other moving parts that make this delivery more harder?
I would love to see the game further develop, to see what more is there to offer.

Hey, this is well done! Graphics might be a bit gray, but it's fun.
You almost managed to do it under 3 hours too, pretty cool.
Maybe you could colour the letters for each category so as it is obvious if you need to pick which one: Electronics, Books... first. And maybe add a few moving obstacles to increase variety.

Gameplay was good, fun little experience.

I love the idea behind the game , except the lack of audio leaves the game feeling a bit flat , also I discovered a bug on my second playthrough where the timers have a chance of defaulting to one second when randomising at the start. Also the art is a bit blurry.

TLDR : Love the idea , would be more fun if u added more sound effects and cleaned up the art a little bit cause the pixel art is blurry, but overall would love to see it expanded and polished.