This is a 2-player Arcade console, running PiMame on a Raspberry Pi model B+. I built the first one of these just to get some use out of an unused Raspberry Pi, and everyone who played it loved it! After that, I cleaned it up and made a bunch of improvements to the final version you see here.
2/13/15 Fixed dxf file.
Aside from the box, you'll need a Pi and an arcade button/joystick combination pack - I got mine from eBay seller 4partyfun, who did a great job and shipped fast. The kit included buttons, sticks, a XinMo USB controller and all the wiring harnesses.
For people asking about specific examples of hardware kits, and the difference between Happ and Sanwa, here are a few examples.
Two player Sanwa hardware kit: http://amzn.to/2i7EGYu
Two player HAPP hardware kit: http://amzn.to/2zbnz2M
Rpi 3 Model B: http://amzn.to/2zSh965
Just remember that HAPP joysticks have "bat top" and Sanwa have "ball top". It's as easy as that!
The full instructions on how to build the box are on instructables here:
For those without a laser cutter, you can buy the parts here