Psycho Mantis was one of the bosses in Konami's Metal Gear Solid.
Psycho Mantis' real name is unknown. But what is known is that Psycho Mantis was born in a small unnamed village in Russia, prior to the fall of the Soviet Union. His mother died giving birth to him, resulting in him being hated by his father. Psycho Mantis discovered how his father felt after accidentally reading his mind and began to worry that his father would kill him. Eventually, his subconscious became dominant, resulting in the boy using his telekinetic powers to burn down the village. No one survived and the experience left Psycho Mantis burned and scarred, especially on his facial area. He eventually became a part of the KGB, acting as part of its psychic intelligence division. When the Soviet Union fell, Psycho Mantis went to the US, joining the FBI, where he would delve into the minds of suspected serial killers to get the truth. But during one such interrogation, Psycho Mantis delved too far into one killer’s mind, which deeply affected him, causing him to take on the killer’s psychotic personality. After leaving the FBI, Psycho Mantis worked freelance and offered his services to the highest bidder. But as he read mind after mind, Psycho Mantis became utterly disgusted with humanity, stating everyone focused on sex. Eventually he joined FOXHOUND, becoming the group’s psychic expert and psychological warfare specialist.