The Video Game Shield is an Arduino add-on shield to make your own video games, including graphics, text, sound effects, and music! Using the power of open source, this Shield includes everything you need to make awesome black-and-white video games on your TV. It supports up to two Nintendo Wii Nunchuck controllers for an easy and familiar interface.

Do you need to output text, graphics, or audio through RCA jacks to a TV? Do you need to work with two Nunchucks at the same time? You can do both of these things with Wayne and Layne's Video Game Shield.

This is a kit, you must assemble and solder it using basic soldering tools such as an iron, solder and diagonal cutters. Arduino and controllers not included. 

More info: http://www.wayneandlayne.com/projects/video-game-shield/