Fans have noted that Mercer's hood and facial features are slightly more defined than in Prototype 1 , though the disguise icon in the HUD remains Heller's.

Copy your existing profile.bin and slot files to a safe location before replacing them.

All genetic memories are unlocked, providing the full backstory of the NYZ outbreak without needing to hunt down specific targets.

While the skin provides a complete visual overhaul, making Mercer look "more badass" with upgraded textures compared to the first game, it remains a cosmetic change.

Every ability—including the Blade , Claws , Whipfist , Hammerfists , and the new Tendrils —is maxed out to its final form.

Once in-game, navigate to the Radnet or Rewards menu to toggle the Alex Mercer skin.

Using Mercer's skin while performing Heller-specific moves, like the Bio-Bomb or summoning a Pack of Brawlers, creates a unique "hybrid" experience. How to Install the 100% Save Game (PC) To use a downloaded 100% save file, follow these steps: