"Metal Gear Rising: Revengeance" also deals with "revenge". Raiden is defeated in the beginning and feels a deep sense of vengeance, and as such exacts his 'revenge' on the group who sabotaged him, as well as coming to terms with his own past and embracing his true nature. The games carry many implicit parallels to Nietzschean philosophy. Solid Snake serves as a deconstruction of the action hero archetype, as his wartime experiences have turned him into a bitter, broken-down soldier who wishes to retire, but cannot escape the life of conflict that had entwined him for so long. This concept is further explored through Raiden, who is put through the same torments as Snake in explicit detail. Big Boss is similarly not immune to this theme: as Naked Snake, he does not resemble a suave, impeccable secret agent that would otherwise fit into the 1960s spy film pastiche of "Metal Gear Solid 3: Snake Eater", but is instead an everyman character. Only after undergoing immense psychological and physical scarring does he begin to resemble the ultimate soldier known as Big Boss.