I get the deal that this is a special cart as it has pretty much what the 161in1 is missing, but I also know it has that daughterboard some will do the dipswitch change on it so that you can use it in a multi-slot system. I can't do that kind of work, so does anyone actually sell these already modified or what would one expect to pay if they came across it or someone willing to do the work? It has a few games I'd love to crack into but the price of the carts alone are getting pretty prohibitively annoying (like Twinkle Star Sprites, Sengoku 2, etc) on there.