This project that I made in my university was about get a virtual reality with Arduino.
The idea was to connect the Wii game pad to an Arduino, this Arduino control the buttons.
The objetive is to get real actions are to the game. For example shoot, reload, jump, etc.
Well, I think that a video and the pictures will show better how it's work.
(It's my first time here sorry for my English hehe).
Here a video on Youtube: https://www.youtube.com/watch?v=7qJZeGFcTRM