The new Arduino Esplora has been designed to emulate traditional input devices like a mouse or keyboard, and Arduino has developed to not only be a games controller.

New Arduino Esplora Provides A Ready-For-Gaming, Customizable, Open Source Video Game Controller Darrell Etherington 5:59 AM PST · December 10, 2012 ...

[Tobie Nortje] sure remembers them and has built an Arduino controller to play virtual versions of the games. He started off by finding a website that is digitizing the old games.

The Mooltipass project USB code contributor [Tom] and his friend [Ignatius] recently launched their Indiegogo campaign: meet the 3D gesture controller uMotio (Indiegogo link). As [Tom] has been spe… ...

Well, it turns out all you need to do to give the Fisher-Price controller an Elite growth spurt is to add an Arduino Pro Micro clone controller board, actual joysticks, and some microswitches to ...

That changed with the release of the Gameduino, a version of the open-source Arduino board pre-loaded with games, sprites, and inputs for various game controllers.

Electronics maker Adafruit Industries has developed its own Arduino-compatible boards, including one called the Flora--and a few craft projects to go with them.