Well, first if they were close I'd use a sword blessed by a priest. If mid range, I'd use a flame thrower, but it would have to be in an open enviroment. My alternate one would be the shotgun. Long range you can't go wrong with the bazooka. If I ran out of ammo Then, it would have to be a weapon the could "Slice" it in half, like a Vulcan. If I was cornered I'd simply commit seppuku, and merely, a few milisecond's after, I use a bomb strapped to my chest. And yes, I am aware seppuku is exetremely painful.