Resident Evil Revelations

Found this on https://www.playstationtrophies.org/game/resident-evil-revel...
Shadow Norman is the end boss of The Ghost Ship and Ghost Ship: Chaos if one or both players are set to Level 50. He will spawn after hitting the Gold medal that appears when defeating regular Norman. I strongly recommend attempting this in co-op as he is very difficult solo unless you have the very best weapons and parts.

Shadow Norman is more powerful, aggressive and faster than regular Norman, he also has considerably more health and is resistant to different weapons. In his normal state he is vulnerable to Handguns, Machine Guns and Shotguns, while being resistant to the Rifle and Magnum. After taking around 1/4 of his health he will let out a roar, enter his berserk state and be emitting a purple aura, at this point he becomes very aggressive and resistant to Handguns, Machine Guns and Shotguns, while being weak to the Rifle and Magnum. An excellent strategy to stay safe during this part of the fight is to move around the shipping container, kiting him around it can protect you from his attacks which can be difficult to dodge normally.

When he is in his normal state try to have one player attack him in his weak spot while the other tries to get his attention, he doesn't expose his heart very often so this is the only way to inflict heavy damage. When he goes berserk either unload on his heart with a Rifle or Magnum or you wait a minute by abusing the container to avoid his attacks until he goes back in to his regular state. If he manages to grab or hit you use a herb straight away, even at level 50 with all body armor upgrades his attacks will bring you to the brink of death and can kill you in a single hit if you aren't at full health.

If you are attempting this solo then you will need solid weapons with gluttony, and preferably an autoloader part, otherwise he will soak up all of your ammo before you can kill him. This risk is mitigated somewhat by playing in co-op.

Either find players to help here Co-Op Partners Thread or search for games on The Ghost Ship, often there are high level players with powerful gear carrying others through the stage.