Knock-knock
Kill 4 enemies with 4 shots during a slow-mo breach in Single Player or Special Ops.
5/16/2010
6:43:14 PM
Rare 15.2%
Professional
Earn all 3 stars in at least 15 different Special Op missions.
4/14/2010
9:25:07 PM
Ultra Rare 3.2%
Little Sister Savior
The player has completed the game without harvesting any Little Sisters
4/8/2010
11:21:10 AM
Rare 21.4%
Dealt with every Little Sister
The player has either Harvested or Rescued every possible Little Sister
4/7/2010
6:18:41 PM
Rare 21.4%
Maxed All Tracks
Purchased every slot in all four Plasmid and Tonic tracks
4/4/2010
9:40:32 PM
Rare 19.6%
Broke Fontaine's Mind Control
The player has broken Fontaine's mind control
4/4/2010
9:35:52 PM
Rare 35.2%