I won't hold Brutal Legend against Black, I think his contributions were one of the few reasons it is even mediocre instead of outright bad.

Schafer, another fat beard man, is responsible for the huge gameplay shift and planned it that way entirely as a middle finger to his publisher. They wouldn't let him make his wierd RTS, so he faked a different game than swerved back to the shitty RTS portion.

If it had stuck to the action game thing it would have been a fine weekend rental game. Instead Schafer showed his true colors (that Gamergate would show even brighter) by leaving all his fans to suffer so he could have a hissy fit at his publisher telling him his idea was dumb.