KDavis Does the Impossible 

NOTE: I know that this is pretty much possible, I just thought, that beating the ultimate form of a final boss with just the buster, was extremely hard.
When I was beating Falzar's ass for the umteenth time, I thought, "can I beat him using the buster?"
Well, I set out and tried to beat him with the buster. I used the Beast buster, for I don't have a lot of faith in my abilities with the megabuster. Also, I am pretty sure others can do better. This is my finest work to date. Next, maybe I'll try to do the same to Gregar...