Spydorz
A Spydor is a pest that will teleport into a person's house at random and attack their Chibi-Robo, often in packs of three to five, with only a few drops of oil to warn of their presence in an area. When first encountered in Chibi-Robo!, however, there were eight Spydorz in the group, which surrounded Chibi-Robo in an attack called the Spydor Roulette. While Spydorz are a menace, they are easily taken out by a shot from a Chibi-Blaster; these shots will conveniently home in on the nearest Spydor. Destroying a Spydor will leave behind a bit of Scrap, which can then be recycled in order to create Utilibots Even with their queen destroyed, the Spydorz continue to appear in the Sanderson household.
Creation
The Spydorz were in fact created by Mr. Sanderson, while he was an employee of Macroware Robotics, Inc. Though he had designed them to be friends with Chibi-Robos, the company reprogrammed them to attack. Mr. Sanderson quit as a result, taking the more dangerous Spydorz with him. When Mr. Sanderson heard from the news that Spydorz were attacking Chibi-Robos around the world, he became quite upset.