Okaeri! Chibi-Robo! Happy Richie Oosouji follows the titular robot as he returns to the house of the now-adult Jenny Sanderson and earns money as well as happy points by vacuuming her house. A colorful cast of side characters can be expected as well, each with their own story and some minigames to complete. The title was developed by Skip and was published by Nintendo for the Nintendo DS in Japan on July 23, 2009.