Litterbots, known as Obots in the Japanese version, are robots in the Yu-Gi-Oh! ZEXAL anime. They are designed to detect and collect trash around Heartland City. When they find trash, they yell "Garbage!" or "Trash!", then they grab and "eat" it while yelling "Cleaning!". In the dub, they say "Trash identified". Each Litterbot has a number painted on some part of its body. They also appear to have a special D-Pad version each. Hart Tenjo has the power to send the trash they collect to the Astral World under the orders of Mr. Heartland and Dr. Faker. The trash damages the Astral World.