Diamond Weapon (Final Fantasy VII boss)

Diamond Weapon is a boss in Final Fantasy VII. It is one of the Planet's many WEAPONs, which have been released by Sephiroth. The party fights it as it approaches Midgar towards the end of the game. Its attacks include a foot stomp, a blast of magical energy, and its Diamond Flash, a gravity based attack with a 3 turn countdown that also inflicts silence.

Defeat
Once the party reduces Diamond Weapon's HP to zero, it is still alive and approaching Midgar. Once within range, it opens fire on Shinra Headquarters. At that same time, however, Shinra fires the Sister Ray, which successfully pierces Diamond Weapon and destroys the barrier Sephiroth put up over the Northern Crater. The fact that Diamond Weapon lies on a straight line drawn from Midgar and the Northern Crater suggests that unlike the other Weapons, who can be found wandering in various places, Diamond Weapon left the crater with a specific target in mind. It is also one of only two of the WEAPONs required to fight in order to advance through the story, the first being Ultimate WEAPON in Mideel. Interestingly, upon closer inspection of the FMV where Diamond Weapon is blasted, he appears to be heading away from Midgar before launching an attack on it.