biorider
"I'm Prince of Anger, RX BioRider!"
Form Kamen Rider BLACK RX has been transformed by strong anger.
Weapon: Bio_Blade
Special Moves: Spark Cutter
Special abilities: To be able to liquefy his body.
See also:
* Kamen Rider BLACK RX (series)
** Kamen Rider BLACK RX/Minami Koutarou
*** RoboRider