Kiteretsu Inc.

Kiteretsu Inc. is a Japanese video company game founded in February 2007. It was located in Minami-Aoyama, Minato-ku, Tokyo Japan.

They made mobile games such as Zookeeper Battle! (which is the game Angry Birds Fight! was based upon) & Angry Birds Fight! (Which was the first Angry Birds game to be made in Japan).

In November 2017, Kiteretsu Inc. has shut down Angry Birds Fight.