 Since its release for the NES , Donkey Kong Jr . Math has been a critical and commercial disappointment . GameRankings reports an aggregate score of 32 % , based on 5 reviews . It was the worst @-@ selling launch title for the NES . Nintendo spokesman Tom Sarris said that it " wasn 't a big hit " , adding that no one was very enthusiastic about the title . He felt that if it had been received better , it would have led to more educational titles . Author Andy Slaven , writing in the Video Game Bible , criticized the premise , deriding Nintendo for combining a well @-@ liked license with math , which is generally disliked by children . Inside Higher Ed 's David Epstein did not find it to be a fun game , while 1UP.com 's Bob Mackey called it the worst NES launch title , criticizing it for its lack of value . He commented that Donkey Kong Jr. moves as well as an infant would in real life . 
