Didn't B use the gun like for a HP in a few episodes or his crowbar also has used a chain.
Also remember the episode of Rhinoman and Mighty Hog use as a special or mega move.
A Special his ball and chain from NES Manhattan Project.
KO sound when he cries "MAMMAAAAAAAAAAA!"
if you get to this point:
A Taunt: He lift his glasses looks at the opponent (in an episode he quoted "Man, and I thought I was ugly", than looks at the player breaking the 4th wall like they did in the toon