is an edutainment platform video game developed and published by Nintendo for the Nintendo Entertainment System. It is a spin-off of the 1982 arcade game Donkey Kong Jr. In the game, players control Donkey Kong Jr. as he solves math problems set up by his father Donkey Kong. It was released in Japan in 1983 for the Family Computer, and in North America and the PAL region in 1986. It is the only game in the Education Series of NES games in North America, owing to the game's lack of success. It was made available in various forms, including in the 2002 GameCube video game Animal Crossing and on the Virtual Console services for Wii and Wii U in 2007 and 2014 respectively. Donkey Kong Jr. Math was a critical and commercial failure. It has received criticism from several publications including IGN staff, who called it one of the worst Virtual Console games. Gameplay The game features two modes, one single-player and the allowing for one to two players. Its mechanics are similar to its predecessor, Donkey Kong Jr. The Calculate mode has Donkey Kong hold up a number, which players must attempt to reach by collecting a combination of digits and arithmetic symbols to eventually reach that number. Players must climb vines to reach these figures. The +−×÷ Exercise requires players to solve fixed math puzzles by climbing chains to reach the correct numbers and arithmetic symbols to do so. Development Donkey Kong Jr. Math was developed by Nintendo Research & Development 2 and designed by Toshihiko Nakago. It was published by Nintendo for the Nintendo Entertainment System (NES) and Family Computer (Famicom). It reuses its engine, assets, and gameplay from Donkey Kong Jr. It was a part of the Educational Series on the NES, a series that was originally supposed to have three entries, including a Donkey Kong music game. However, it was the only one released under that line. A lack of success by the game was attributed by a Nintendo spokesman to be the reason Nintendo did not make more educational titles. It was the first spin-off title Nintendo made. The game was first released in Japan on December 12, 1983, and was released shortly after together with Donkey Kong Jr. as a licensed multicart (released in a bundle together with Sharp's C1 NES TV). Donkey Kong Jr. Math was released for the NES in North