This is pretty incredible, big thank you to DJ TechTools for posting. Some Japanese mod-ers figured out how to rig up a BMX bike with sensors that interface with Traktor Pro. The wheels correspond to the track that's playing, and doing various tricks seems to activate different samples. I'm really impressed with this project; I love how they combined two totally different subcultures into one! The guys over at DJ TechTools noted that there maybe some post-production work involved, but I'm going to roll with “ignorance is bliss” on this one.
Making of Turntable Rider: