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Pacta Sunt Servanda Finish the "Hearts of Stone" expansion.

Nano This! Upgrade to Ultra Nanotech

Take Aim Destroy a fighter or bomber on Novalis

The Great Escape Complete "Desperate Escape" with an S rank.

The Riddle of the Sphynx Have your bazooka ready.

Wanted: Dead or Alive Captured Al Bashir

Ressurector of the Hiragumo Collected all fragments of the Hiragumo teakettle from Shigisan.

Drek This! Defeat Chairman Drek

Twofor Took down 2 enemies with 1 bullet in Night Shift

Buckle Up, Boys, Buckle Up! Earn 5 Relics.

Trigger Clickin' Good Shoot 5 of them in a single level.

Pallbearer - Kill 500 Helghast Kill 500 Helghast Soldiers

Way of the Warrior Defeat 150 enemies singlehandedly in one playthrough of "Desperate Escape."

Girl Trouble Defeat Blarg Station Alien Queen using only the wrench!

Family Jewels Retrieve your stolen goods

Hey, Over Here! Lure an enemy into a forcefield on Orxon

True Understanding Complete all Legends Mode stories on a single difficulty.

Tharsis Ribbon Complete Tharsis Refinery on any difficulty level

Let's Get This Party Started! Unlock all selectable characters in Versus.

The War to End All Wars Complete the campaign on Hard difficulty

The Big Apple Complete "Black Tuesday" and "Hunter Killer" on Veteran difficulty.

Buried Treasure Find and destroy all the crates in the ocean on Pokitaru

Earth's New Champion Complete the Cell Saga.

Unseen Predator Remain in Zer0's Decepti0n mode for 10 seconds straight.

Into the Abyss Complete Hypocenter on Hardened, Veteran, or Realistic.

Cruiser Ribbon Complete The Cruiser on any difficulty level

Safety First - Shoot off 100 helmets Shoot off 100 Helghast helmets during battle

Maelstra Ribbon Complete Maelstra Barrens on any difficulty level

Sniper Shoot a Scream through the sniper hole on Orxon

Speedy Beat the hoverboard challenge in less than 1:35 on Rilgar

Wish Upon a Star Destroy all 18 of the Score stars found throughout "Lost in Nightmares."

Bye-Bye, Buu Complete the Majin Buu Saga.

Let the Building Begin! Build a machine part.

Unlock Sketchbook Attain 15 Skill Points to Unlock Sketchbook in Menu

So Much Blood! Gunzerk continuously for 90 seconds.

Conquering the mountains Unlock all Codex Entries in Avanti Savoia!

Cluck, Cluck Turn a tank into a chicken on Rilgar

Enough for a library Collect all Field Manuals in the campaign

Going Commando Kill 10 elite guards with only the wrench on Veldin

Can't Touch This Get 50 instant victories on enemies.

Shopaholic Buy all the items put on the block at the Borsodis' Auction House.

Get out of My Head and Turn into My Car Build a hovercar.

Treasure Hunter Complete the mission "X Marks the Spot".

Eat Lead Use a Sand Mouse to destroy all the tanks on Batalia

Flawless Freeflow Fighter 2.0 Complete one combat challenge without taking damage (any character)

Push It to the Limit Complete 10 challenges at a Training Grounds location with any character.

Sitting Ducks Destroy all cargo ships in the base on Orbital Oltanis

Robot Rider Build a Bipedal Robo Walker.

Twisted Hoverboard Do a "Twisty" McMarx" in the hoverboard race

Blood for Blood Complete Vengeance on Hardened, Veteran, or Realistic.