Brown (ブラウン,Buraun?) is a robot in Mega Man 6 that mainly appears in Knight Man's stage. It resembles a barrel with a row of openings around the middle, and attacks by periodically firing an arcing projectile. The barrel is indestructible, but shooting it will cause the enemy to reveal its weak spot: the Met-like head contained within. The player must then shoot the head in order to defeat the enemy. A charged shot from Rush Power Adapter can destroy the barrel (and the Brown inside) in one hit without needing to expose Brown's head.
Brown may be inspired by a children's toy/game from Japan, Pop-up Pirate. In that game, players take turns poking plastic swords into a barrel, one of which may cause the aforementioned pirate's head to pop up and eliminate that player from the game.