Soul of Chogokin (超合金魂 Chōgōkin Damashii?) or "Soul of Super-alloy", is a popular line of adult collector's toys produced by Bandai. Four mecha figures from Prince of Darkness were produced as part of the SPEC series: * Black Selena (March 2008) * Black Selena Ghost Vision Exclusive (March 2009) * Mudzura (December 2008) * Yatenkou (December 2008) Both the Mudzura and Yatenkou were released together.