Team Creator
Build and save a level with more than one player with the thermometer more than 30% full
6/16/2011
5:48:40 AM
Rare 11.9%
Hard Finish
Finish story mode on Hard, without changing the difficulty setting.
6/13/2011
10:08:50 PM
Very Rare 6.6%
Ladder Master
Complete Arcade Ladder on max difficulty without using a continue
6/11/2011
6:24:56 PM
Ultra Rare 1.2%
Oh, You've Done This Before
Take down 50 enemies by sticking them with a grenade.
6/7/2011
6:43:09 PM
Rare 14.3%