Enemy Zero gun, and a strategy guide. The music is performed by the Michael Nyman Orchestra and Sarah Leonard. "Confusion" is a modification of material from Nyman's previous score, "The Ogre", while the Enemy Zero/Invisible Enemy/Battle theme were modified into portions of Nyman's score for "Man with a Movie Camera". "Laura's Theme," "Digital Tragedy," and "Love Theme" are solo piano works and are included on the EP, "Enemy Zero Piano Sketches", which was released eight months before the complete soundtrack, and two months before the game. "Enemy Zero" received favorable reviews from several publications. "Edge" highly praised the first of the game's
Zero-sum game a situation in which the interacting parties' aggregate gains and losses can be less than or more than zero. A zero-sum game is also called a "strictly competitive" game while non-zero-sum games can be either competitive or non-competitive. Zero-sum games are most often solved with the minimax theorem which is closely related to linear programming duality, or with Nash equilibrium. The zero-sum property (if one gains, another loses) means that any result of a zero-sum situation is Pareto optimal. Generally, any game where all strategies are Pareto optimal is called a conflict game. Zero-sum games are a specific example of