Ogralus closely resembles Gargaros, being a towering figure with clawed limbs and huge teeth. Distinguishing him from the other oni are his blue skin, red ponytail, and the two straight horns poking out of his head. He wears a grass skirt and carries a massive, spiked club.
Ogralus is even more ruthless than his brother, often more willing to teleport himself to the player's location, even if the player technically has not been spotted. He will chase down the player with ruthless efficiency.
Ogralus appears if his brother, Gargaros, is defeated, representing an increase in the difficulty of Terror Time.
Unlike Gargaros and Orcanos, Ogralus prefers to fight using his water Elemental Attack, which can prove problematic as many of the game's mascot Yo-kai, such as Jibanyan, Komasan, and Kyubi, are weak to water. His soultimate is very strong although his attacks are weak.
Get a key from Mr E outside of the old house in San Fantastico. You can go into Mystery Way but need to link Fleshy Souls with Psychic Specters. You will eventually encounter Toadal Dude by a door. If you enter you will appear in terror time at Fox Shrine Road. Go to the shrine to find Ogralus. Battle him, though one must note that like Slimamander and SV Snaggerjag, Ogralus is a Boss Yo-kai, so he does not accept food and can only have a raised befriend chance with either a Yo-kai with the Popularity Skill or one holding a Superstar Soul, and after the battle he has a chance to befriend you.