The Lemming is an enemy in Final Fantasy Dimensions. It is encountered in the Challenge Dungeon of the The Dark Knight part. Since the Challenge Dungeons do not appear outside the original phone release, it is only dummied in the other mobile versions and therefore not available in any English version of the game.
Lemmings are small rodents, usually found in or near the Arctic, in tundra biomes. They are subniveal animals, and together with voles and muskrats, they make up the subfamily Arvicolinae (also known as Microtinae), which forms part of the largest mammal radiation by far, the superfamily Muroidea, which also includes rats, mice, hamsters, and gerbils.