What Does This Button Do??
Complete Arcade Ladder without blocking (allowed to continue)
4/25/2011
12:07:33 AM
Rare 10.7%
Mission Accomplished
Save humanity throughout the galaxy from certain annihilation
4/8/2011
4:00:28 AM
Rare 45.3%
Long Service Medal
Complete Mass Effect 2 twice, or complete it once with a character imported from Mass Effect 1
4/8/2011
4:00:07 AM
Rare 31.0%
The Ultimate Sacrifice
Complete the Arrival DLC ("Arrival" downloadable content)
3/30/2011
5:44:45 AM
Rare 10.3%
