世界樹の迷宮
Similar to early role-playing video games that did not support automatic mapping, players of "Etrian Odyssey II" must maintain their own maps. This is done by using the stylus to manually fashion maps on the DS touchscreen, with whatever level of detail is desired. Periodic warp points allow players to escape the labyrinth in order to save the game, so being able to successfully return to these (with the assistance of an accurate map) can be quite important. When compared to the mapping system in the original "Etrian Odyssey", there are now additional symbols which can be used.