Moon, the "Beatnik" is a drunken-style master of vandalism. He is a weapon specialist, and although he begins combat empty handed, Moon can pick up any object on the field and wield it with deadly force. He gets a higher bonus for found-object weapons than any other fighter.
The trouble with Moon is also an advantage if played well; he is completley shitfaced drunk and psychotic. The gameplay effect of this is a random cycle of special moves. Moon is never really going to what you expect him to do. His moves are fast and powerful, but 100% unpredictable.
Moon will occasionally cast 'tantrum' and not ony will he drop whatever he is carrying (which is bad) but also flail around and strike the ground repeatedly (which can be good). The way to use this to your advantage is to stay glued to your opponent. If it is a large target like William Conrad Moon does well to ride around on his giant back.