Also known as: BLACKRX, 仮面ライダーBLACKRX
Hero of Kamen Rider BLACK RX (Series), a child of the sun.
Black RX is the result of Minami Koutarou's Kingstone mutating from exposure to solar radiation after being thrown into space. With his new powers, he returns to Earth to put an end to the Crisis Empire.
RX retains the grasshopper motif and is now colored black and green. His new powers allow him to switch between the yellow Roborider and blue Biorider.
