I prop walked on a book. I see all now. (it's not a bug, it's a feature)
Click to hold a prop where you are dragging it and walk into it/ontop of it holding w.

Maybe one day we will have the robots to pick up the bin

Fixed already ^^ yeah, I personally love those kind of bugs. You got the sneak peak from the level creation and assets selected to "use-maybe", lucky you!
I would love to add this physic to the garbage with the character, maybe after the jam :). This version got updated twice I hope upgrades are now more clear to pick after the run and the section was created for both of those things - score and upgrades. I were hoping to have a 3rd screen - pre-run with more info and upgrades and then post-run with scores and so but it end with one with all.