The Haneru No Tobira Tamagotchi, commonly known as the Hanerutchi (はねるっち) or Hanerutchi 1, is a Tamagotchi released in 2005 exclusive to Japan. The programming is based on that of the Keitai Kaitsuu Tamagotchi Plus, while the characters (with the exception of baby and child) are based on characters from the Japanese comedy show Haneru No Tobira (translated, You Knock on a Jumping Door!). Since this model is released after the Keitai Tamagotchi it has the ability to connect to Japanese mobile phones.