It is fun to play.
I like that you made a lot of different upgrades that change how you play. You have sense of progression when you buy them. But IMO it would be better if upgrade shop would pause the timer, cause I have no time to read descriptions. So I just buy random upgrades instead of doing some strategy.
Achievements are also a nice touch.
Visuals are nice, really given you sense of picking up trash in a crowd :)
And a little side note: there is no button to exit the game