Little Mermaid - Ariel's Undersea Adventure, The ROM Download can be obtained free for Nintendo DS on EmuGames.net only. Play emulator game in English for the USA region. Little Mermaid Ariel's Undersea Adventure The is a NDS ROM that you can download to your computer or play online within your browser. You can also download roms such as Little Nemo The Dream Master and Naked Little Mermaid The that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.