Prototype 2 for PC is the computer version of the sequel to Radical Entertainment's action game. This page lists the unlockable modes. There's also a walkthrough. Completing the game on any difficulty opens New Game, allowing you to restart the story by choosing the difficulty and keeping updates and evolutions from previous games; then Insana mode appears.
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Unlockables
New Game+: complete the game on any difficulty to start a new playthrough on any available difficulty while keeping all the upgrades and evolution levels you obtained.
Insane difficulty: complete the game on any difficulty.
Tips
Upgrades from targets: search the indicated locations and complete the listed tasks to unlock upgrades by consuming the DNA of each target. If you accidentally kill one of these targets, it respawns randomly.
Recommended order: first complete all the main missions and the //BLACKNET ones.
//BLACKNET Hacker: complete all //BLACKNET dossiers.
