Donkey Kong Jr. (JU) ROM Download for Nintendo (NES) on Emulator Games. Play Donkey Kong Jr. (JU) game that is available in the United States of America (USA) version only on this website. Donkey Kong Jr. (JU) is a Nintendo emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Donkey Kong Classics, Donkey Kong Jr. Math and Donkey Kong (JU) as shown below. Donkey Kong Jr. (JU) works on all your devices in high quality.