Hadokam is a collaborated street fighter 4 hack accomplished at GameHackDay NYC 2011 by Mike Kelberman, Liangjie Xia, Bruno Kruse, Diego Rioja, Mustafa Bagdatli.
A picture of a player's front face is projected to the character model extracted from the original game, and a generated skin texture is swapped back to the game for real gameplay. The character model is also hacked to allow Big Head Mode playing for a much more rewarding gameplay experience. A custom controller board is built (from a Mortal Kombat 2 arcade panel found on the street) to allow multiuser playing.
Face mapping and texture generation is done with Processing, the controller board is powered by Arduino and simulating 2 joysticks.
Hadokam won the First Prize People's Choice of GameHackDay NYC 2011.
Hadokam on GameHackDay wiki: http://wiki.gamehackday.org/nyc11/show/Hadokam
Hadokam Project Site: http://hadokam.com
This video is showing an early stage skin replacement demo, featuring Feilong with the face of my co-worker Haris Amin.