Yoji Biomehanika (also known as Yoji Mabuchi, Mutant DJ, Ozaka Oz, and Bionico) is a popular Japanese trance/hard trance DJ. Characterised by his striking clothing style and manner of entertaining behind and in front of the turntables, he is a driving force behind a style which he prefers to call "Hard Dance". His style can be described as a mix between Tech-trance, Hard Dance, Hard Trance etc. But is mainly characterised by its high speed and its great amount of energy, accentuated by Yoji's equally energetic performance style. Yoji Biomehanika has already made a big name as dance DJ, particularly in Europe after his gigs at big events including Sensation, Mystery land, Dance Valley and the Tidy Weekender. In the Dance Valley gig he was with Lab 4.