With further releases, many games in the genre drifted towards action by allowing the option of direct confrontations. The "Hitman" series, the first installment of which was released in 2000, allowed this play style, but rewarded the player for stealthy and elaborate assassination of antagonists. "", the first of the series, was the first 3D game to employ the genre's device of disguises. "No One Lives Forever", an espionage themed parody also released in 2000, again allowed the player to combine or choose between stealth and overt violence. In 2000, the first-person action role-playing game "Deus Ex" also allowed the player the choice of taking a stealth approach. A USA Today reviewer found "At the easiest difficulty setting, your character is pureed again and again by an onslaught of human and robotic terrorists until you learn the value of stealth."