I liked the character and the building, but I got stuck on the stairs a few times and that killed the run. I'm also unsure what the recyclable/harmful/normal garbage count are for?
It's kind of nice that the game pauses when you click off the game window.
It'd be nice if you could press "R" to restart or "ESC" to either exit to the main menu or bring up a pause menu to restart or exit. I liked that there was an exit/replay option when the timer ran out.