PHOTO CREDIT: By Eduardo Merille (Flickr: Mike Tyson at SXSW 2011 (cropped)) [CC-BY-SA-2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
Some dude took a bunch of Mike Tyson footage and replace the audio with Street Fighter II sound effects.
The results are about as awesome as you'd expect:
*In addition to "HADOUKEN!", "Scary" Terry Stevens is a radio host for Midwest Communications. You can Book Face with him here .