Complete Monster/Metal Gear


 * Colonel Volgin from Metal Gear Solid 3 is a sadist who, within minutes of appearing, fires a Davy Crocket nuke at his countrymen just to give it "a test drive," knowing full well that he won't be blamed for it, even when one of his subordinates is clinging to his arm, begging him not to. Then come one of the most vicious Cold-Blooded Torture scenes in video games. Note that it's damn clear he didn't care if the torturee lives or dies before getting the proper information, as long as he gets his kicks. Then we also have the fact that Volgin, long before the events of the game, had participated in the Katyn Forest Massacre as a NKVD member, where he managed to kill over 20,000 Polish officers with his bare hands, and not only that, but he also removed their blindfolds before beating them to a pulp, and he killed several people in both the Hungarian Revolution and the East Germany Uprising, which he not only had absolutely no regrets about killing 100,000 anti-communist activists, but even boasted about the feat.
 * If you think about it, Volgin's "test-drive" (and probably Coldman's involvement in getting Volgin into doing his "test-drive")
 * Although the Metal Gear Ac!d series isn't canon to the main series, even it has some pretty horrific people. Metal Gear Ac!d 2 has a complete monster, and surprise, it . No, the real complete monster was  . He
 * Sundowner from Metal Gear Rising: Revengeance is a sadistic war profiteer who gleefully kickstarts wars for the hell of it, due to his beliefs that humanity's natural state is a violent, bloody one, and he shows this at the beginning of the game when he sadistically assassinates President N'mami (The president of a foreign African country). What really qualifies Sundowner for this status though is that the guy isn't afraid at all of exposing children to the horrors of war: he kidnaps orphans off the street and removes their brains in order to be put through intense war simulators. The kicker? The children are aware of this the entire time, and after all the brutal training is over, they're forced out into war to commit atrocities similar to the ones they'd commit in Sundowner's simulators. While even has surprisingly altruistic reasons for going through with this plan, Sundowner is a sick bastard who gets his jollies from the suffering of humanity.