This is the Arduboy. It’s a complete game system that is as big as a credit card. As with most unique projects, it started life out as a Kickstarter campaign. Needless to say, it because a successful one and garnered almost 4,000 backers. Now it’s available for purchase; it features 8-bit, single-colored games on its 1.3-inch OLED display. It has 6 tactile momentary push buttons (much like the Game Boy), and even has 2 electric speakers. It’s housed in a durable polycarbonate+aluminum casing that they claim is drop-proof. Anyway, just check it out for yourself using the links below.