Tympole is a small aquatic tadpole-like Pokémon. Tympole has a rounded black body with a tan-colored face. It has a small grinning mouth, round black eyes, and black eyebrows that resemble musical notes. It has round blue dome-shaped blue ears on either side of its head, and a flat, ovular blue fin-like tail.
N is shown to be owning a Tympole as he used it against a match against Black, though after his Tympole lost he didn't return it to its Poké Ball because he thinks that Pokémon are his friends and he shouldn't trap it in a Poké Ball.