Clear the jet ski chase.

Get 50 headshot bonuses in Campaign.

Destroy all of the Spider's legs.

Clear "HIT AND RUN."

Clear the giant slide.

Purchase nanomachines for a teammate.

Demonstrated your skill, or lack thereof, at rolling the magical treasure orb of many sides

Showed thine worst enemy, the abomination known as "The Darkness," who is the nerdiest of them all

Won the most challenging round in Murderlin's Temple

Completed all Hammerlock's Hunt side missions

Completed the mission "The Fall of Nakayama"

Completed all Campaign of Carnage side missions