Basically, if you don't know, Banzuke was a show full of ultra tough challenges - literally designed to be 'unbeatable'. Contestants (regular people and professionals) try to beat the games to win prizes (money I think, though not sure at the moment).
It was were Sasuke came from. You might have noticed the gold logo on the older competitions in Ninja series 2.
Re: New site I think Sasuke started out as one of the games - just a mega big one. Sasuke 1 was done inside in the Banzuke studio.
Just a real shame that this show got cancelled. To people hurt their backs while doing a really cool course. It was all old temple themed and looked so good, but it was never shown as recording was cancelled in that show