Tour of the City
Complete each arena at least once in the same game in any game mode
11/1/2009
1:11:09 PM
Common 74.4%
More the Merrier
Kill 10 or more zombies at the same time in any game mode
11/1/2009
1:07:11 PM
Common 81.1%
Interior Decorator
Kill 25 zombies in any game mode using environmental hazards
11/1/2009
1:04:27 PM
Common 80.1%
Environmental Awareness
Kill a zombie using an environmental hazard in any game mode
11/1/2009
12:57:23 PM
Common 91.8%
Pack Rat Strikes Back
Only use items to win a fight. No attacks or counter attacks allowed.
10/31/2009
8:35:40 AM
Rare 33.0%
Pump
Use the pump controls to pump up and release completely an effect.
10/18/2009
2:19:30 PM
Common 81.8%
All Together Now
Do a Team-Up attack involving all three party members.
10/4/2009
12:50:38 PM
Rare 23.3%