Josh of RealGamerNewz writes, "Final Verdict: While Etrian Odyssey Untold: The Millennium Girl has its flaws, it is also a very well put together game. The grinding in missions can get old quickly but also builds up XP very quickly so that stronger moves can be pulled off. The in-game cut-scenes are some of the best that I have seen on Nintendo 3DS and really involve the player in the game. The game's mechanics are also well put together and reward veterans as well as new comers to the series. I would recommend this game to any fans of the JRPG genre that are looking for a great game with a great story line."