Unlockables and Cheats for Prototype on PC

Prototype is an action-adventure video game released in 2009 for all major gaming platforms. Set in Manhattan, the game's story follows Alex Mercer, a mysterious figure with amnesia, as he attempts to prevent the outbreak of a plague. Like the PS3 and Xbox 360 versions, Prototype on PC has a few unlockables and cheats to uncover.

Complete the game in Normal Mode to unlock Hard Mode.

Unlock Platinum Events by earning a Gold in every event.

Get experience points when you pick up an Orb. The value increases based on how many Orbs you collect. 

Turn on Infected Vision or Thermal Vision to see the difficult-to-locate Landmark and Hint Collectibles.

After Karen Parker disappears, reveal her location by completing all the Scientists Consume events.

Complete the game in Easy or Normal Mode to unlock the New Game + Mode. In this mode, Alex's skills are unlocked from the beginning. If you beat the game on Easy, you'll unlock Easy + Mode; if you beat it on Normal, you'll unlock Normal + Mode and Easy + Mode.

Prototype supports a single cheat code that unlocks a special ability. Select Extras from the main menu and enter the following code: Right, Right, Left, Down, Up, Up, Up, Down.

Switch to Armor and Blade after the cutscene ends and stay far away from your opponent until he approaches you. Use Air Blade Slash a couple of times to stun him. If he knocks you down, use a Devastator move to stun him again.