Defeated Terramorphous the Invincible

Killed a Chubby

Revived someone from "Fight for Your Life!" that is on your friends list

Reached level 25

Completed the mission "Toil And Trouble"

Completed the mission "The Man Who Would Be Jack"

Completed the mission "Wildlife Preservation"

Killed a flying enemy with a thrown Tediore weapon

Completed the mission "X Marks the Spot"

Killed a Constructor without it ever building another bot

Completed the mission "A Train To Catch"

Got an item from Michael Mamaril