People look at robot cat Ballon which moves on the floor at its photo opportunity during the Underground Maker Festival in Tokyo, Japan August 5, 2018. According to Japanese artist Daiki Sako who created the robot by combining a robot cleaner and body and head of a cat which made by handicraft, the robot was inspired by the video artworks "Welcome to Kitty City" by Cyriak. REUTERS/Kim Kyung-Hoon