The psycho characters from Borderlands attack directly. They kamikaze at your with hatchets, knives and whatever sharp, pointy or bludgeoning objects they've got. While it can be scary has hell holding back the hordes in game it is probably not a sound battle plan for a real-world fight. As proved by this video.
The little “psycho” guy is just lucky he got knocked out instead of getting the bat turned on him. In this case this is video game fighting style that does not carry over to real life.