The Ninja was a very early composite body design from YoYoJam. After the success of the Original SpinFaktor, YoYoJam released the Ninja as the standard shape version of the SpinFaktor, with composite metal and plastic body. The Ninja never caught on and was discontinued after the first original run of several hundred.
The logos were hot stamped holographic on a clear plastic side, and print quality was not great. No response system other than the molding holes around the axle, which acted as a weak starburst. But mainly, the market was heading away from standard shapes and to concave models.
