Moreau, in his mutated fish-like form, is a large, slow-moving boss. His weak point is the human torso exposed on his back. He will often spew corrosive bile and attempt to charge you. The arena has several structures you can use for cover. When he opens his mouth to attack, he exposes his weak point. Use the sniper rifle or shotgun to hit it. After taking enough damage, he will climb onto a roof and rain down bile; use this opportunity to shoot him from a distance. Mines can also be effective when he charges.
