In1997,theSonyindustrial groupcreated theDigital Creatures Laboratory Groupto launch its humanoid research program. The family of theSony Dream Robot(SDR) made it possible to develop theSDR 4Xmodelin2002. It measures 0.58 meters for a weight of about 6.5 kg, it can move on rough terrain and climb stairs. In 2003, the research program evolved withQuest For CuRIOsity(Qrio). At the technical level, the new model has taken the characteristics of SDR 4X with some improvements but above all the work has been to develop communication in Japanese and English and improve its algorithm to obtain an optimization of its movements. In2006, the development of humanoid programs was stopped, however, research in the field of artificial intelligence (AI) was continued.