Genma
The Genma are Onimusha: Way of the Sword's primary enemy type. Capcom describes them as monstrosities from the underworld, arriving in Edo-era Kyoto on the tide of Malice.
Role in the Game
Slaying Genma is the Oni Gauntlet's reason for existing. Every combat system in the game, from the Souls loop to Break Issen and the Oni Armaments, is designed around the Genma as the main threat Musashi has to clear from the city.