Haganai
The first "Boku wa Tomodachi ga Sukunai" manga series, written and illustrated by Itachi, has been published in Media Factory's "Monthly Comic Alive" magazine since its May 2010 issue, released on March 27, 2010. Additionally, the series has been collected in 14 "tankōbon" volumes. Seven Seas Entertainment has licensed the first manga series in North America under the title "Haganai: I Don't Have Many Friends".
Tamagotchi! (anime)
The series officially got extended to the Nintendo 3DS, starting with which is released on April 19, 2012. The game is a remake of the first Tamagotchi Corner Shop game with characters from the Anime version. The second game in the series, is released on November 22, 2012. It is the first game to include characters from the "Yume Kira Dream" series. The third game is released on May 23, 2013. The fourth game in series, is released on November 7, 2013. It is the first game to include characters from the "Miracle Friends" series. The current game of the series, is released on April 24, 2014.