Appearance
A small round Pokémon like a navy-blue rock with smooth facets, and no face. A yellow six-sided opening is its ear. An oblong brown rock juts from its head; similar brown rocks form its feet.

#524
Mantle Pokémon
Roggenrola is a Rock-type Pokémon, No. 524 in the National Pokédex, introduced in Generation 5 (Unova region).
« When it detects a noise, it starts to move. The energy core inside it makes this Pokémon slightly warm to the touch. »
A small round Pokémon like a navy-blue rock with smooth facets, and no face. A yellow six-sided opening is its ear. An oblong brown rock juts from its head; similar brown rocks form its feet.
It is born deep underground. Hard as steel, it follows sounds people cannot hear with its single ear and panics if they stop. It evolves into Boldore, then Gigalith.
Ash catches one, which later evolves into Boldore. Fourteen Roggenrola targeted by Team Rocket are rescued with help from a fifteenth, one of the group.
It appears based on a geode and an elemental creature of earth. Roggenrola may come from rock and rock and roll, or rock-and-roller.