This is a story about humanoid robots created by Dr. Auteuil for his grandson Nobuhiko. In the process of writing and fill the firmware for the robot happens irreparable.Nobuhiko sneezes! Now, every time you sneeze Nobuhiko robot (called signal) is converted from a restive young man in the infant. Once Signal attacking old development of the doctor - a robot named Pulse. Unknown foe armed to the teeth, and it ordered the kidnapping last doctor invention. "Who said,good anime that have to be long? Twin Signal contains all three series, but how positive emotions it causes! Of course, if the directors would have liked, they could stretch this story a little longer, but I think the anime will only be lost. In my opinion, it should not be called a small and concentrated,because for all three series, I could not stop laughing ".