Though all you wanted them to do generally was sweep up puke, if you left the command on for them to mow lawns, they will wander off spending hours mowing the endless acres of your theme park while your Guests swim in rivers of their own vomit.
No More Heroes intersperses hack-and-slash mayhem with open sandbox city exploration, item collection, a Galaga-esque space shooter sequence, public services such as cleaning up the park or mowing lawns, hitting a baseball through a row of enemies, and avoiding obstacles on a highway chase.