Violent Ken (In Japan known as Brainwashed Ken | Japanese: 洗脳されたケン | Hepburn: Sennōsareta Ken) is a video game character who first appeared in SNK vs. Capcom: SVC Chaos as a sub-boss, before eventually joining the mainline Street Fighter series starting with Ultra Street Fighter II: The Final Challengers. This is the form Ken has taken after being brainwashed and controlled by M. Bison's Psycho Power.