Galileo Virus

The Galileo Virus (ガリレオウィルス, Garireo Wirusu), as known as the Tei Virus (テイウィルス, Tei Wirusu) is a recurring computer virus in the Kuru Kuru games that forcibly causes infected Nendoroids and Mecharoids to lose control of their programming and become violent and berserk. First thought to be Dr. Galileo's doing, it turns out that Tei is behind everything.

Properties
The Galileo Virus causes any Nendoroids it infects to lose control of it's programming entirely, becoming increasingly homicidal and hostile towards other living things, including other non-infected Nendoroids, while being subservient to Dr. Galileo. It causes Mechanoids to lose control of their programming entirely and go berserk. Tei and Dr. Galileo's other robots aren't affected by the virus, as they exist as a carrier of the virus, being created by Dr. Galileo. Infected Nendoroids and Mechanoids are also able to spread the virus.

Unlike the Soma Virus from Soma Buster, the side effects of Galileo Virus are comparable to hypnosis rather than a disease. Also, unlike the Soma Virus, it is only capable of infecting robots.

Origin
During the prologue in Kuru Kuru Rotation Robo, Dr. Galileo is arrogantly gloating to the military about his "secret project" before being arrested, indirectly referring to Tei and the Galileo Virus. Vast amounts of the Galileo Virus was found in Tei's capsule, and the virus started spreading when Tei was released from her capsule.