Wanted. He can be defeated by using a weapon with a skill which can make a defender get confused or cursed. This is one of the hardest monsters to ever beat, behind Meteor (1st), and Comaco (Kingdom Version, 2nd). The Sheriff doesn't auto-counter unlike the Kingdom version, and his shotgun can (and will kill you) at anytime.
He disappears when a player is no longer wanted, or if all wanted players are dead.
This is the only Special Monster in the DX version to appear when a person has a Status Ailment.