Nice concept, but too grindy and random - I had 3 huge cats come to the screen and so I lost. Having some prestige system instead of just "start over" would be nice.
Well, cannot say the complexity has dropped. At first try I faced the boss fully automated with several workers, and now I barely can buy the second cleaner because the boss hits at 30k and the price for the second guy - ~20k. And still unclear how to beat the boss. I definitely don't see the timer, because my cleaners keep cleaning and resetting it, however I still lose.