I was actually going to use a roomba as the device to clean the room when the limitation was announced, but changed the device to a vacuum once the GMTK theme was announced.
After reading some of the comments, I do think that the controls could be improved, especially with certain hitboxes. I was thinking about using the mouse to point in the direction to face, but decided to use button inputs as I work primarily on a laptop. I'll experiment with using the mouse to point in a certain direction once the rating period ends.