I couldn't finish 'em. Looks like this's gonna get complicated.
The Gun Bull Head+ is an enemy in Crisis Core -Final Fantasy VII-.
Just like any other robotic or machine foes, Gun Bull Head+ is vulnerable to magical attacks. However, do not attack it with Thunder-elemental attacks as it is immune to Thunder. Use Fire or Blizzard to inflict significant damage. They are capable of inflicting damage to AP and HP, as well as inflicting Silence, Stun, and Stop, so be wary of them and keep moving if they are in groups with other enemies.