Thanks for the feedback!
The numbers on the trash mean how much chaos points this particular piece adds to your score.
The floor gives you 1 point for every piece of garbage that contacts it and harder to reach places like balconies and rooftops give you more. For now these chaos points are just your score that is shown in the end along with high score.
Right on point about ripping. It actually was implemented but dropped performance of web build so much that I had to disable it. I am planning to optimise the implementation and bring it back!