Really interesting and well-executed level & mechanic design for a well-balanced game.
With the limited power, strategy and purpose are created as I tried to have the most efficient movement. I managed to finish all the levels with level 3 being a bit of a difficulty. However, the difficulty is really well scaled!
In addition, the polishing--the mowing animation and the people running around added a nice touch to the game.
I was expecting the game to be easy because no other obstacles are involved, but the clever level design showed that no complex mechanics are needed. However, It would be interesting to have some variations in buildings(Ex: Ones that can only be mowed sideway) as more content.
Great job!