Grumblemon

Grumblemon is a Demon Digimon. It possesses power over Earth which bears the might of AncientVolcanomon. Various weapons and armor are brought to life from its large hands and thick fingers, and its craftsmanship is practical yet artistic. The Grotte Armor that it wears and its main weapon, the Grotte Hammer, are both the handmade Grotte-brand. It prefers to act alone since it hates being ordered about, however, its artisan pride is such that, once it recognizes someone's true merit, it will obediently abide them, and immerse itself in its own work. Although it's not very intelligent, its pride towards its work is intensely high and it has a strong tendency to take the opponent lightly. It also has a technique which creates Golemon using the earth around it and orders them to attack.

Attacks
 * Seismic Sledge (Snake Eye Break): Smashes its "Grotte Hammer" into foe. The attack can be used to petrify and smash enemies.
 * Jack in the Box: Jumps out of the ground and attacks with its Grotte Hammer.

Design
Grumblemon's design is derived from the mythological, a diminutive but humanoid entity defined by  as an earth elemental. It also has the bulbous nose of the mythological, another chthonic entity in Scandinavian folklore. It wields the "Grotte Hammer" and can summon more than one of them.

Grumblemon wielding a hammer may be a pun due to both the for "hammer" (槌) and "earth" (土) being read as "tsuchi".

Etymologies
Official romanization given by the Digimon Reference Book and used in Japanese media.
 * Grottemon (グロットモン)
 * Fr: "Grotte" (lit. "").

Official name given by the Digimon Encyclopedia and used in most American English media.
 * Grumblemon
 * En:.

Digimon Adventure:
After the death of a Grumblemon, possibly a reborn Gigasmon, tends the crops on a farm alongside a group of fellow Digimon.

Digimon Masters
Grumblemon is an obtainable Digimon at the H-Hybrid level.

These Digimon are attacking obstacles in the hard to stay on track, Cloud Kingdom.

Digimon Heroes!
Grottemon is card 7-037.

Digimon Soul Chaser
Grumblemon digivolves from Monmon and can digivolve to Gigasmon.

Digimon Battle
Grumblemon is an enemy Digimon.