This tiny brown Pokémon's most famous feature is that it seems to be perpetually buried within the earth, usually having only its head visible. Another one of its most distinguishing characteristics is its big pink nose.

What Diglett looks like underground is a mystery, a fact that has sparked many fan interpretations over the years. The only thing known is that they have feet, as mentioned in Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team, although not even its friend Magnemite knew this until Diglett mentioned it.