Man, there is a lot to keep track of!
It took me a while to understand the priorities: tend the mower first (and watch for hamsters), and go after ghoasts when possible.
I don't know how to be particularly successful at this. The one time I got the mower to the charger, I only ended up with 80 squares mowed.
Still, pretty fun. Really weird.
And I appreciated that I could add my own beat to the music with the bible and the rake. Good fun for those lulls in the action.