Prototype follows Alex Mercer, a man who wakes without his memory but possesses extraordinary shape-shifting abilities. Hunting for the people responsible for creating him, Mercer pursues answers about his origins, his powers, and a conspiracy connected to a town in Idaho and stretching back decades. That personal mystery gives the action a clear narrative drive: discovery and revenge are intertwined.
Combat is built around adapting Mercer’s body to threats. He can switch between claws, blades, hammers, and whips, or form a shield or armor for defense; thermal and infected vision provide ways to track enemies. Movement is equally central to the design. In New York City’s open world, adaptive parkour lets him run up walls and bound from building to building, with cars and other obstacles incorporated into his path. The ability to consume people adds another layer: Mercer can take their appearance, memories, and special abilities.
The listed format is single-player, so the game’s focus is on one player moving through Mercer’s conspiracy-driven story and using these powers in combat and traversal. Its distinctive appeal comes from joining a revenge mystery to fluid urban movement and a body that can change to meet different situations, rather than treating those elements as separate attractions.