Don't Mow Out In The Rain

You have a large, obstacle-ridden field to mow, but rain is on its way and the poor lawnmower needs to be done before it gets too heavy. Efficiently and skilfully mow at least 80% of the field before the time runs out. 

Controls: Use the mouse to turn the lawnmower handle. Hold <Space> to reverse. 

My first Unity project, developed over ~2 weeks by a team of 5.