Hotter than Hell
Complete the final day of the "7 Days of Hell" unlockable mode
8/18/2010
9:15:19 PM
Rare 11.6%
Anniversary of the Dead
Complete the Final Day, in either Single or Multiplayer, and finish the game
8/17/2010
7:36:17 PM
Rare 22.8%
Gun Shop
Kill at least one zombie with each weapon type in any game mode
8/15/2010
1:15:56 PM
Rare 40.4%
Gas Powered
Complete an entire arena, getting every kill with the Chainsaw
8/14/2010
9:26:38 PM
Common 63.0%
Tour of the City
Complete each arena at least once in the same game in any game mode
8/14/2010
7:12:25 PM
Common 74.4%
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
8/14/2010
7:00:46 PM
Common 80.1%
More the Merrier
Kill 10 or more zombies at the same time in any game mode
8/14/2010
7:00:39 PM
Common 81.1%
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
8/14/2010
6:52:55 PM
Common 91.8%
