Play for a total of 2 hours

Pick up all shovels inside the shop in the level Sunshine

Listen to the radio in the level Sunshine

Finish the level Canyon

Collect some loot!

Kill 300 zombies in Horde Mode (streak)

Play the game for 4 hours in a row

Finish the level Sunshine

Shoot with the Machine Gun in the Refinery

Finish the level Refinery

Finish the level Caves

Kill all zombies that are locked up in the cage in Canyon

Throw a duck

Kill 20 zombies using grenades

Kill 50 zombies with a Headshot

Collect 20 burgers

Kill 100 zombies with a Headshot

Finish Dead Man on Apocalyptic

Find all weapons in the Dead Man DLC

Launch the ICBM