In Okaeri! Chibi-Robo! Happy Rich Oosouji (loosely Welcome Home Chibi-Robo! Happy, Rich Big Sweep) players plug-in to dust patrol. When you vacuum dirt you also get riches! Money can be spent on new tools for Chibi-Robo, but the altruistic robot’s goal is to make others happy. So, you can also use money and play interior designer in Jenny’s home.