Dragon Unit ROM Download for Nintendo (NES) on Emulator Games. Play Dragon Unit game that is available in the United States of America (USA) version only on this website. Dragon Unit 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 Double Dragon 2 - The Revenge, Double Dragon and Double Dragon 3 - The Sacred Stones as shown below. Dragon Unit works on all your devices in high quality.