The Kamaitachi was designed to be YoYoJam's high end looper. Weight Rings and domed caps, bearing axle with special looping configuration , adjustable gap, and take apart design. Early Kamaitachi's included a printed insert under the caps for a better quality logo. This insert tended to rattle and spin inside the cap, so later versions have the logo imprinted on the clear cap.
The Opaque Ice Blue was released in September 2004.