All jokes aside, this would be a really cool mod. Maybe someone can trim up a Genesis 3 board to fit inside. Problem is, how would you get the controllers to work with it? You'd have to mod it to work with the Saturn controllers. Next you'd have to install a system select switch. Another issue is the power supply, how would you get both to work on one power supply? And finally, combining the video output into one output on the back of the console would be a lot of fun. Now that I think about it, all this may just not be feasable.