I couldn't finish 'em. Looks like this's gonna get complicated.
Bahamut Fury is a boss enemy in Crisis Core -Final Fantasy VII-. It is summoned by Genesis and fought in the Shinra Building. It is fought three times in the game, and Zack can add it to his DMW after defeating it in Mission 8-5-6.
The player should start the battle by casting Regen and then assaulting Bahamut Fury with sword attacks. Be prepared to dodge or defend whenever it begins to prepare its special attacks. Elemental damage is halved so it's probably a better idea to use only physical attacks.
Bahamut (Arabic بهموت Bahamūt) originated as an enormous whale in ancient pre-Islamic Arabian mythology. Upon Bahamut's back stands a bull with four thousand eyes, ears, noses, mouths, tongues and feet called Kujuta (also spelled "Kuyutha"). Between each of these is a distance of a 500-year journey. On the back of Kujuta is a mountain of ruby. Atop this mountain is an angel who carries six hells, earth, and seven heavens on its shoulders.
Another version of the Arabic story is that Bahamut is indeed a dragon and he stands on a whale called Liwash.
In modern times, the game Dungeons & Dragons is responsible for re-imagining Bahamut as the king of dragons, a benevolent Platinum Dragon; the opposite of the malevolent Tiamat, the five-headed Chromatic Queen of Dragons.