Yoji Biomehanika, also known as YOJI, Mutant DJ, Ozaka Oz, Bionico, Biomehanika and The Arcade Nation is a Japanese trance/hard trance DJ. He is characterised by his striking clothing style, manner of entertaining behind and in front of the turntables, and energetic style of music. Whilst his residency at GIGA in Japan has also given him a big following in his home country, Yoji has also played at events in countries around the world, including Southern California's Electric Daisy Carnival in front a crowd measured in the tens of thousands.