I had 2 options that I have been seriously considering. the Background is Red, Yellow, Blue, Green for each player.
Option 1 - Each Player has a different coloured Joystick and buttons to the Background. So Red has Yellow buttons, Yellow Red, Blue Green, and Green Blue. With the 7th button on the 2 centre players been the same as the background.
Option 2 - Each player is the same colour as the background. With the 7th buttons on the 2 centre players, an alternate colour. (If I go this I will either get some black buttons or more of the same colour buttons)
I have mocked it up using Paint.net, my skills are not very leet, so forgive the ugliness of it. My intention is to round the corners of Red and Green at the front, and to take a reasonable amount off on an angle at the back of Red and Green as well. I have marked where I Intend to put the Credit and Start buttons. My intention is to have a circle of characters in each Background as well. So TMNT, Captain Commando, D&D, Gauntlet characters, etc in each circle, suited somewhat to the player/colour backgroudn they are in. (Leonardo for blue for example)
What does everyone think?