The Law is Dead

 

Kill your first Damned Zombie.

Alone at the End

 

Complete Story Mode in Single Player.

Hard Worker

 

Complete all Objectives listed for any chapter.

Got Pwnage?

 

Use each character's Pwnage ability 10 times.

Weapons Expert

 

Pick-up all five mash-up weapons with each character.

Money Grubber

 

Collect $20,000 in a single chapter.

Beacon in the Dark

 

Survive a fortnight in Blackout Mode.

Long Term Survival Plan

 

You survived 30 Days in Survival: Classic.

Super Savior

 

Bring all possible survivors to Def Money's yacht in Story Mode.

Playing with Power

 

Get all 100 upgrades for your characters.

Epic Run

 

Complete a Story Mode: New Game with 3 other players.

Exhausted

 

Complete All Chapter Objectives.

Let's Finish This

 

Complete Prequel: Day 56.

Warm It Up

 

Survive Pure Pwnage for 10 minutes.

The Pwnage

 

Pwn 10,000 zombies with Jeremy and Doug.