Inversion achievements

Shoot off 100 Lutadore Helmets (Any Difficulty)

Kill 100 Lutadore Enemies with explosives in the Campaign (Grenades, Rockets, Barrels)

Have a friend boost you over a ledge (Co-op mode)

Complete a Campaign level with a Friend (Any Difficulty)

Perform 50 Finishing Moves using High Grav Powers (Campaign)

Revive a friend online (Co-op mode)

Escape from a Lurker's grasp 5 times during single player

Use the Gravlink to throw 50 Lutadore Enemies (Campaign)

Perform 10 Finishing Moves using High Grav Powers (Campaign)

Use the Gravlink to throw 30 Lutadore Enemies (Campaign)

Use the Gravlink to throw 15 Lutadore Enemies (Campaign)

Perform 50 Finishing Moves using Low Grav Powers (Campaign)