The most sought-after skin is undoubtedly the original protagonist, Alex Mercer
| Skin Name | How to Unlock | Description | | :--- | :--- | :--- | | | Complete the final mission ("The Last Man") of the main story. | The classic. Turns James Heller into a high-definition model of Alex Mercer (from Prototype 1 ). Voice lines remain Heller's, but the appearance is perfect. | | Classic Heller | Complete the Prologue mission ("I Am Your Wrath"). | This is simply Heller in his standard leather jacket. You technically start with this. | | Armored Heller | Complete the "Operation: Fly Trap" story mission. | A mid-game skin where Heller wears a heavier tactical vest and gear. | how to unlock all skins in prototype 2