The Orb-Bots are two-legged with clawed, metal feet. They have a purple, orb-shaped body with laser blasters in the front and two in size and equipped with twin lasers. They also have two eye-antennae.
Sally Acorn, Geoffrey St. John, Arlo the Armadillo, Hamlin, Dylan Porcupine and Penelope Platypus encountered two Orb-Bots while trying to take down one of Robotropolis's power stations. Sally Acorn managed to take one of them down by tripping it with a wire. The next one survived for longer and followed Sally and her group out of the exploding power station, but was destroyed when it fell into a ridge.