|Prior forms||Anyone + H Spirit of Earth|
|Voice actors||(Ja:) Tomohiro Nishimura|
(En:) Derek Stephen Prince
Grumblemon is an Ogre Digimon. It possesses power over Earth which bears the might of AncientVolcanomon.
- Seismic Sledge (Snake Eye Break): Smashes its "Grotte Hammer" into foe.
- Jack in the Box
Grumblemon's design is derived from the mythological Gnome, a diminutive but humanoid chthonic entity defined by Paracelsus as an earth elemental. It also has the bulbous nose of the mythological Troll, another chthonic entity in Scandinavian folklore. It wields the "Grotte Hammer" and can summon more than one of them.
- Grottemon (グロットモン)
Official romanization given by the Digimon Reference Book and used through the series.
- Fr: "Grotte" (lit. "Grotto").
Name used in the American English dub of Digimon Frontier as well as many localized materials.
- En: Grumble.