It's the very first boss fight in the game, but harder, better, stronger. Both the shell and head are weak to fire, and you need to only kill one part to finish the boss. The shell has better defenses than the head, of course. One thing to note here is that there are 2 Dragon Claws that can be dropped by killing both parts at the same time. This needs some HP checking to do and having enough damage to finish both at the same time.