The concept of this game may look simple at first glance, but the truth is that it's a really interesting game that offers cool visuals, tight controls, humor and a great learning curve. The upgrade system is spot on (my strategy was to start with battery upgrades) and provides depth to the experience. Driving the roomba around at max speed was a pleasure : Would love to see this expanded with new rooms, crazy upgrades and objectives, you have a very enjoyable concept here. The only thing I would and would maybe be a map of the room, so it would indicate the places which have yet to be cleaned. A very solid experience, congratulations for this and long live the roomba! :D