Locomotion is also similar, with both games' protagonists capable of running along the facades of skyscrapers and leaping hundreds of feet into the air. Prototype iterates heavily on Radical Entertainment's 2005 superhero game, The Incredible Hulk: Ultimate Destruction, with both sharing a focus on chaos and destruction. With martial law declared and an iron blockade isolating Manhattan, Alex has no choice but to confront both the viral monsters and the military forces at every turn, all the while uncovering the terrible secrets concerning the nature of the virus and the nature of his powers. These black ops soldiers will stop at nothing to contain the virus and capture Mercer, even if it means destroying everyone and everything in their path. Unfortunately, Mercer is hindered by the United States military as well as the merciless Blackwatch. Working with his sister and other allies, Alex seeks to uncover his powers' origins as well as stop a mysterious viral outbreak that has also appeared on the island. Struggling against a painful case of amnesia, Mercer escapes the morgue in search of his sister, Dana. The game opens with Alex Mercer awaking in a morgue, the doctors having believed him dead. These abilities range from simple stat upgrades to access to new shapeshifting forms. By performing various tasks in the game world, from story-driven quests to causing random destruction, players earn 'evolution points' which may be spent on new abilities. Set on Manhattan Island, players take control of protagonist Alex Mercer, a man with a mysterious past whose true nature is revealed through the course of the game. Developed by Radical Entertainment and published by Sierra Entertainment and Activision, Prototype is an action game with a sandbox style of gameplay similar to Grand Theft Auto and Spider-Man.

Prototype save game location