Bronze Ah Gross!Use the Gravlink to throw a corpse at your friend (Co-op mode)
Bronze All Up In Them GutsUse a Shotgun to gib 25 Lutadore enemies (Any Difficulty)
Bronze Brotastic!Revive a friend online (Co-op mode)
Bronze Burn it DownSet 25 Lutadore enemies on fire with the Lavagun (Any Difficulty)
Bronze Dude Bro!Complete a Campaign level with a Friend (Any Difficulty)
Bronze Easy GoingFinish the Campaign on Low Gravity Difficulty
Bronze EnforcerReach Gold Grav Major Rank
Bronze Gold StarGet 1st Place in a Deathmatch game (Matchmaking)
Bronze Gravlink ThugUse the Gravlink to throw 15 Lutadore Enemies (Campaign)
Bronze Half SackReach Silver Grav Sergeant Rank
Bronze High G AmateurPerform 10 Finishing Moves using High Grav Powers (Campaign)
Bronze I'm DesignerChange your multiplayer character's appearance
Bronze Low G AmateurPerform 10 Finishing Moves using Low Grav Powers (Campaign)
Bronze Man of MayhemReach Diamond Grav Commander Rank
Bronze MeatheadsFinish the Campaign with a Friend (Any Difficulty)
Bronze SoldierReach Bronze Grav Captain Rank
Bronze Spot me Bro!Have a friend boost you over a ledge (Co-op mode)
Bronze TeamsterBe a part of a winning team in Team Deathmatch (Matchmaking)
Bronze That’s Assault Brotha!Be a part of a winning team in Assault Mode (Matchmaking)
Bronze ThreesomeUse the Gravlink to kill 3 Lutadores with one object (Campaign)
Bronze William Tell RoutineShoot off 100 Lutadore Helmets (Any Difficulty)
Silver FivesomeUse the Gravlink to kill 5 Lutadores with one object (Campaign)
Silver GrapplerTake the Gravlink from the Lutadores
Silver Gravlink GangstaUse the Gravlink to throw 50 Lutadore Enemies (Campaign)
Silver Gravlink HustlerUse the Gravlink to throw 30 Lutadore Enemies (Campaign)
Silver High G ChampPerform 50 Finishing Moves using High Grav Powers (Campaign)
Silver I'm About to BlowKill 100 Lutadore Enemies with explosives in the Campaign (Grenades, Rockets, Barrels)
Silver Kicking Weightless AssEscape from a Lurker's grasp 5 times during single player
Silver Low G ChampPerform 50 Finishing Moves using Low Grav Powers (Campaign)
Silver Master BlasterComplete All Multiplayer Weapon Challenges
Silver Normal GuyFinish the Campaign on Normal Gravity Difficulty
Gold Feats Don't Fail Me NowComplete All Multiplayer Basic Challenges
Gold Rock HardFinish the Campaign on High Gravity Difficulty
Platinum Grand Master GravityUnlock all trophies