Thanks for checking it out! There were a few squares laying just off the side of the roads near the start that you could pick up and drop off too. I was about to implement some UI to make it more meaningful when I saw I had like 30 mins left to submit. I ended up getting caught without any console logs saying it was picked up and dropped off, and no score updates to give them any real purpose other than it looking like they disappear when you run them over.