Behemoth (ベヒモス, Behimosu)? is a demon in the series.
Archaic Jewish name for hippopotamus, from the Hebrew behema. In Jewish mythology, it is an apocalyptic beast who represents the largest and most powerful of all land-dwelling beasts, was herbivorous, and dwelled in swamps. The Behemoth is the primal power of the land, as the Leviathan is the primal monster of the sea, and the Ziz the monster of the sky. Legend says that at the end of the world the Behemoth and Leviathan will kill each other, providing apocalyptic feasts for men.
Devil Summoner: Raidou Kuzunoha vs. The Lone Marebito
Originally Shouten, one of Abe Seimei's minions, he was infected with Clarion's poisonous magnetite, which disfigured him and several of his allies. An uncontrollable hunger took over, leading him to eat his fellow demons and anything he could get his hands on, transforming him into Behemoth. Behemoth then spreads the magnetite that fuels Abe's plan and is then used as a sacrifice to summon Clarion.
DemiKids Light & Dark
"Beast of legend who's forgotten he's got the power to summon Doomsday."
"Nobody can stop this legendary beast who has the power to destroy worlds."
Known as Brute, he can perform the combo attack Dragon Cross with Doom Rox. To obtain Brute ones must first create Brutzom through Relic Fusion, then obtain his soul an fuse with it with the zombie.
Devil Children Messiah Riser
Behemoth appears as a boss within the ruins of the Imperium's former capital Tyranog.
Devil Survivor 2
"A gigantic demon also known as Behemot. It was originally an animal mentioned in the Book of Job as a giant fish, but later generations referred to it as a demon that presides over darkness and tempts men to excessively eat and drink. It is an epicure and excessive eater itself, and its stomach is always swelled to its limits."