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Re-Armed Receive Zero's arm part in Mega Man X.

Dinner Date Pigsy's Perfect 10: Collect all hidden food and pin-up girls.

Elevator Out of Order Reach the roof in 'Highrise' under 45 seconds

Polar Angler Catch all known species of fish in The Pale Reach.

Frozen Favors Finish all side quests in The Pale Reach.

Wishing for the Best Complete the "Last Wish" Raid.

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

Hot Pants Complete I Now Know Why You Cry

Biomech Sweeper Complete "Biomech Sweeper" challenge

A Can Of Worms Play Trial of the Worm for the first time.

Master of the reliquary Gather all the fingers of Frankenstein

Act 2 Cleaner Complete all Act 2 maps on Nightmare difficulty.

Blood Rights Kill Satan with Samson

Ladies Night Beat an Echo Six Expansion Pack mission with the 3 female characters in your party.

The third faction Rescue all the Buddies from their respective predicaments

Acidic Alchemy In IX, Get a kill with the Acid Trap in each of its craftable locations

Gravestone Kill 100 Zombies with a vehicle in a single deployment in MWZ

Smart Mouth Complete a puzzle level with moves remaining

Clever girl Release a Velociraptor

Oh Yeah!!! Complete Nothing is as it Seems

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

Accept you are never actually in control Power slide with the Ranger Team's vehicle for 3 seconds (within a 5-second window)

Act 4 Cleaner Complete Act 4 on Nightmare difficulty

A Little Pack Here, a Little Punch There In Voyage of Despair, use the Pack-a-Punch at every possible location in a single game

Grave and Growing Free a country.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Cold Corruptions Catch all aberrations in The Pale Reach.

Bloody Millionaire Accumulate a total of 1 million blood points. (blood points can be spent before reaching the total)
0/1000000

Distinguished Service Collect 50 Team Boosts.

High Score In Zombie Rush, obtain a Personal Score of 250,000

Avenged Confronted the culprit behind the Vael family's murder. ("The Exiled Prince" downloadable content)

Memento Gave Sebastian a family heirloom. ("The Exiled Prince" downloadable content)

The New Fort Knox Gain 1500 gold bullion

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Feel the Beat, Y'all! Complete "Feel the Beat, Y'all!" challenge

You Can Pet The Dog Pet a Hellhound in MWZ

New Threads Use a new Title and Icon, and fight in one online match. Right on!

Super, Man! To battle is to win a fight with overwhelming strength! Show me you can do 100 Super Combos!

Wish Upon A Star Complete Sofia's story

Can you dig it? Complete "Can you dig it?" challenge

The River Complete "The River" challenge

Nemesis Complete "Nemesis" challenge

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Bloody Lust Kill Isaac with Samson

Let the Dog Out Complete "Let the Dog Out" challenge

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

A beautiful, but deadly addition Release a Dilophosaurus

Destroyer of Chickens Kill 100 Chickens

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.