Get 75 stars!
Unlocked: 21 Feb 2014 06:25:17
Beat a mission wearing the baby carrier!
Unlocked: 21 Feb 2014 06:15:41
Beat a mission wearing the astronaut helmet and backpack!
Unlocked: 21 Feb 2014 06:00:54
Complete a mission on hard or insane without dying or drinking a beer!
Unlocked: 19 Feb 2014 07:18:11
Come in 1st in a four player mission!
Unlocked: 18 Feb 2014 07:00:56
Punch two bullets, killing two robots, with one melee swing!
Unlocked: 18 Feb 2014 06:53:28
Get Over It
15Revive other players 8 times!
Unlocked: 18 Feb 2014 06:36:19
Destroy a robot overlord in multiplayer!
Unlocked: 28 Dec 2013 07:10:38
Kill 100 robots!
Unlocked: 28 Dec 2013 06:41:05
Have someone you invite join you in an online game!
Unlocked: 28 Dec 2013 06:20:10
Kill 10000 robots!
Reach level 50!