New York Bop rules played out today using Gangs of New York as proxies. The battle resulted in Bill the Butcher and Priest Vallon going toe to toe with the Butcher having to withdraw to lick his wounds. Despite withdrawning he was soon set upon by some by gang of Dead Rabbits looking to become famous and it wasn't long until the Butcher was lying under the knives.
You can also see prototypes of the gaming aides. Great fun and enjoyed by a first time player.