Draghignazzo

The Draghignazzo was a creature encountered by BSAA agents Jill Valentine and Parker Luciani on the Queen Zenobia.

Encounter
After restoring power to the elevators in the Promenade Hall, the two agents became aware of something moving on the deck above them when the whole room started shaking. Upon entering the lift, they were attacked by the creature as it ascended and it attempted to kill them by destroying the lift. Though it was heavily armoured, they managed to repel it by shooting its exposed arm.

Having reached the top of the Promenade Deck, Jill and Parker were ambushed by the creature again which revealed it's true form. However they managed to kill it for good and the Draghignazzo shattered into pieces.

Strategy
First, lure the boss into destroying the food carts around the room. This will create more space in which to fight. You can evade the monster's charge easily (it will crouch before attacking) while it's ground slam can be prevented by shooting it's vulnerable flesh (if you get knocked down, rapidly press the button that matches the one on the screen to stand up quickly). Inflicting enough damage will cause the boss to collapse, allowing you to fire at its head. The explosive canisters can also be used to stun it. Sniper rifles are good for attacking it from a distance, though machine guns are also very effective. There is plenty of ammo around the chamber and also a herb so don't worry about getting low on supplies.

Appearance
The Draghignazzo resembled a humanoid shellfish and was at least three times the height of the two agents. Most of its body was covered in a hard shell immune to gunfire but it had multiple patches of exposed flesh which could be shot to inflict damage. Its most prominent feature was its gigantic arm which served as its main offensive weapon.

The Draghignazzo also appears as a boss in Raid Mode, though it is noticeably weaker than the version fought in the main storyline. There is also a smaller version known as a "Baby Draghignazzo" that is virtually identical to its "parent", though it is even shorter than a human.

Trivia

 * Draghignazzo is a character in Dante Alighieri's Inferno, part of the Divine Comedy, and one of the Malebranche.
 * The name is perhaps a fusion of "drago" and perhaps "sghignazzo", or a diminutive of "dragaccio" in Italian.