Roggenrola

Roggenrola (Japanese: ダンゴロ Dangoro) is a -type Pokémon introduced in Generation V.

Physiology
Roggenrola is a rocky, roughly spherical Pokémon that resembles a geode. It has with a single yellow hexagonal ear, which is often mistaken for an eye. It is mainly dark cobalt-blue in color. It has a brown rock protruding from the top of its head, and its feet are the same color.

Evolution
Roggenrola evolves into Boldore at level 25, and then to Gigalith via trade.

Trivia

 * When it sleeps its eye is still open because it doesn't have eyelids; shares this trait with its evolutions.
 * It somewhat resembles a Bob-omb from Super Mario 64.

Origin
Roggenrola seems to be based on a geode.

Etymology
Roggenrola's name is a play on the phrase "rock and roller".