Nintendo Research & Development 2 was a division of the Japanese company Nintendo. It was founded in 1972. 

It was closed after Nintendo's internal development groups were restructured by the then-president of Nintendo, Satoru Iwata, in 2003. 

Systems designed by Nintendo Research & Development 2:
1991
Fourth Generation
Home Video Game Console

1985
Third Generation
Home Video Game Console

1979
First Generation
Dedicated Home Video Game Console

1978
First Generation, co-designed by Mitsubishi.
Dedicated Home Video Game Console

Games developed by Nintendo Research & Development 2:
1983
By Nintendo R&D1 (Game), Nintendo R&D2 (NES port): Donkey Kong Jr. has to rescue his father who has been caged by Mario.
By Nintendo R&D1 (Game), Nintendo R&D2 (NES port): Mario has to rescue his girlfriend Pauline from her kidnapper, Donkey Kong.
By Nintendo R&D1 (Game), Nintendo R&D2 (NES port): Mario and his brother Luigi have to get rid of pests in a sewer.

1979
Break Out-style game. The speed and number of balls could be configured. There are also multiple game styles.

1978
Driving game, co-designed by Mitsubishi. Drive a car and avoid oncoming traffic.