O_Guarda

Advanced Survival Win 20 combats in survivor mode in a single run

Ballerina Master Perform all the moves for the Ballerina fight style in a single fight

The First One is the Hardest Get your first 1,000,000+ combo

Three For The Road In the pursuit of strength, one must have a goal! In Endless Battle win 3 matches in a row.

Alright, Alright Survive until round 10 in Infection.

Compulsive Hoarder Obtain at least 100 hidden treasure items.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

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

Prime Directive Shatter Skeletron Prime.

I Challenge You to a Duel Complete a Medieval level using only Lou Don Jim

Survivor Survive until Round 25 in Outbreak.

The third faction Rescue all the Buddies from their respective predicaments

Worth Every Penny Acquire 1000 credits in one month.

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

Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

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

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

Bird Brained Brainbug at least one penguin from each of the 7 penguin ranks, including Putzki in a single playthrough

Signing Day Announce where your college ball will be played at.

The Boss Beats A Boss Defeat a boss using only President of Sony Computer Entertainment Worldwide Studios Shuhei Yoshida

Off My Planet Recover the Hyperwave Beacon.

Real Estate Agent Have all possible town NPCs living in your world.

Boundless Courage Achieve victory while morale is low.

Orb of Delusion Obtain the Orb of Delusion artifact.

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

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Like a glove… Finish trial #6 with 3 hearts left without picking up a spell.

The epitome of Super Earth Complete all Trophies.

Make Friends Acquire all six main characters.

Crystal Clasp Obtain the Crystal Clasp artifact.

Man No More Build a suit of powered armor.

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

That Party was Ace Ace every Adventure level in The Journey Home.

Zombie Master Perform all the moves for the Zombie fight style in a single fight

Wander and the Forbidden Clear the game in hard difficulty

Think fast! Finish trial #8 with at least 52 seconds left on the clock.

Save some room Finish trial #20 one unit below the zapper.

Harvester Of Sorrow Complete the game on Expert

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Karate Master Perform all the moves for the Karate fight style in a single fight

YOU > Evil...Caves Conquer all Caves of Evil
with Kisuke and Momohime.

Steamroller Achieve a win streak of 5 ranked online games.

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

By the Skin of Your Teeth Reach the finish line and win with 1% or less of your fuel remaining.

Dirty Half-Dozen Complete the Cooperative game mode

Lovely Challenge IV Discover the Disco Inferno and the Dancing Dino costumes

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Endangered Lizards Killed all shining lizards

Getting Familiar Solve 10 puzzles.