We posted this as a ShowHN recently, but we built http://www.awesomecontroller.com/ as a side-scrolling pixel site.
We used Pixen on OSX for pixel art, and it was really simple to get started. I'd highly recommend it for simple pixel work if you're not a Photoshop guru.
A small nitpick: You have the NES controller plugging into the power button on the first billboard. The controller ports for the NES are inside the black strip along the right side.
Keep an eye on our Twitter account/mailing list if you want to see what we do with it. We might go completely open source and just provide build instructions, or we might take another crack at it.