[[File:Modulus - Moddy.jpg|thumb|The Moddy version of the Modulus robot.]]
Moddy is the third and most advanced version of the robot. It is obtained by adding a torso, two arms, and a head to the other two units. The robot can carry a tray with its two arms. Its head and big eyes makingmake it into a really human character, reliable, and a companion to play with. It is not surprising then if Isao Hosoe, who designed "Modulus" together with Ann Marinelli, Donato Greco, and Alessio Pozzoli, also received special advice from his two children, ten-year-old Takeo and fifteen-year-old Taro.
The first two units were previously available on the market. Base complete with vacuum cleaner and plotter-mechanism, cost about a million lire, while the price of the Techno-cakeCake varied from two to five million lire, depending on the type and number of components in function (not all the components were available yet, on account of the time needed to develop the software). It would probably take up to a year before Moddy was ready, which would cost between eight and ten million lire, but unfortunately Siriusthe "Modulus" project became bankrupttoo beforeexpensive, causing the "Modulus"bankruptcy projectof Sirius before Moddy could be completed,. and someSome of the robots hadwere to belater sold to companies thatwho distributed them for the aid of handicapped while the restmany of the Moddy robots were later sold to a Norwegian company calledby Arngren Electronics A/S where they were re-sold during the early 1990s1990's.
