Spend 8 seconds or more in the air

Collect 1,000,000 points over all levels you have played

Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

Completed "Operation: Anchorage!"

Completed "The Guns of Anchorage"

Completed "The Nuka-Cola Challenge"

Completed "Walking With Spirits"

Completed "Who Dares Wins"

Completed "Death from Above"

Shoot off 100 Helghast helmets during battle

Survive until round 20 without buying a single Perk. (Map Pack 3 only)

Use the Monkey Bomb. (Map Pack 3 only)

Gain the ability to drive and fly all vehicles.