The world's smallest handheld games console -- which is about the size of a postage stamp, but plays just like a full-size device -- has been developed by US engineers. The'Thumby' console from Ohio-based TinyCircuits comes with five retro games pre-installed, including tiny takes on classics like Tetris, Space Invaders and Snake. Users can even create their own games using the MicroPython programming language and play multiplayer games with others, by means of a linking cable. The console is being sold from £14 ($19) for a basic grey model, with other colours and additional accessories like linking cables also available at higher prices. Each Thumby sports a working battery, buzzer, gameplay buttons, power switch, screen and a micro-USB port to charge the console and update its software.