Lulu is Beatrixo's alien pet. Lulu is an alien creature known as a Zabaloo, similar to a goat in appearance, who Beatrixo had saved some time in the past, and had been living on Earth since; Lulu's walking pattern as she eats creates the crop circles. Beatrixo warns everyone that Lulu cannot be exposed to direct sunlight, as it makes her "cranky" and change her appearance into a larger green monster. After a number of encounters where Noah's father nearly discovers Lulu in her green form, only to have her revert back into goat form by the time he is able to round up the media, Betty solicits the help of Admiral DeGill; he tells her that the only way to bring Lulu under control is if they find Lulu's mother.
Borrowing the Century Warbler, Betty manages to find Lulu's mother using photos of Lulu from X-5's holographic camera, and the mother is brought back to Earth. Noah's father makes another attempt at convincing the media that aliens exist, the reunited family are taken back to their home planet on the Century Warbler, as Noah's father is foiled once again; Betty having convinced the media that the crop circles are mere publicity stunts for her new band, the "Green Aliens From Outer Space". (Lulu on the Loose)