Kill 10 000 Zombies

Complete Mission 8 (Any Difficulty Level)

Reach Racer Rank 40

Perform 500 Melee Kills

Complete Mission 5 (Any Difficulty Level)

Complete Mission 4 (Any Difficulty Level)

Complete Mission 3 (Any Difficulty Level)

Fully Upgrade All Stats Of Any Weapon In Campaign Mode

Complete Mission 2 (Any Difficulty Level)

Fully Upgrade A Single Stat Of Any Weapon In Campaign Mode

Complete A Mission In Co-Op Mode (Any Difficulty Level)

Collect An Armor Piece

Unlocked when the player falls into the void on the way to the Cinema.