Frenzied Fighter
Complete Heroes' Story while performing a combo of 500 hits or higher.
3/7/2012
1:04:30 AM
Common 56.5%
Shooting Star
Get 30% of all available stars in the Challenges mode.
3/6/2012
11:48:23 PM
Ultra Rare 2.3%
Steady feet
Don't fall or stumble during a Figure Skating event on at least medium difficulty (single player).
3/6/2012
9:09:44 PM
Rare 19.7%
Guerilla Warfare
You completed 425 ambient freeplay in the countryside.
3/6/2012
3:32:18 PM
Very Rare 5.7%
Shhhhh
Complete any level with 10 silent kills, on OFFICER or greater difficulty.
3/6/2012
12:11:32 PM
Very Rare 6.5%
Quickly online
Win your first Quick Race online in Arcade or Simulation.
3/6/2012
1:07:02 AM
Very Rare 7.0%
The Collector
Buy every weapon off the walls in a single Zombies game.
3/6/2012
12:32:15 AM
Ultra Rare 1.6%