Dirge of Cerberus question

On the 6th mission on extra hard mode, there is a red bull like beast which runs by the screen which you can kill for a weapon. What is the best way of killing this thing?

Depends on his range, if he is far away, then a rifle. If he is closer, than a normal pistol. I didnt kill the thing, i just kept the basics. Lame, but i got the job done. Also, you could use the thuder materia…but ya…it pretty much depends on where he is at. A little bit more info would help me out a bit. -_-

I finally did kill it, and it was easy. Just needed to get a good kill chain off the dogs right before he comes and when you shoot him, you do tons of damage and he dies quickly.