Fail to Rob a Train
Kill 20 enemies hanging from the Belay Device
Use every gesture in Multiplayer
Kill 100 enemies during Gun Fever
Kill most enemies in Coop mode in a single Action Bubble
Assist a fellow player 10 times in Coop
Win 3 Municipial Mayhem™ rounds
Complete a level with a single pistol
Complete a level with zero deaths
Buy 20 different attachments
Destroy a BetBot
Spend 10 minutes painting graffitis
Assist 50 murders
Buy everything at a Gesund Vending Machine
30 Grenade kills
Kill the Waster Sisters
Kill the Modular Dwarf
Beat the course record at Mr. Video's Grip Emporium