Dinarid

Deadly Bites As Black Widow, land 3 KOs with critical hits in a single match.

Not on My Watch Rescue all the hostages in the Special Ops mission "Negotiator."

A Joyful Nurse Revive 1996 players as Support in Multiplayer

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Required Reading Collect all physical Codex pages in a single save slot (Ancient Gods 1)

Running Man Strap on some boots and go for a jog!

Smoke Screen As the Punisher, land 3 KOs amidst the smoke of Scourge Grenade in a single game.

Crystal Spelunker Complete World Spear (Ancient Gods 2)

Siege Complete the "Light 'Em Up" Special Ops mission on any difficulty.

Big Spender Buy a soda and candy from vending machine

Daily Grind Drink from coffee machine

Lucky Charm Bracelet Acquire all Support Runes in a single save slot (Ancient Gods 1)

Not a Scratch Finish with your tank at full health in the "Iron Clad" Special Ops mission.

Downforce Completionist Gain all stars in 'Downforce'.

Now Who's the Idiot? Finish The Artifact

Lamborghini Completionist Gain all stars in 'Lamborghini'.

Never Tell me the Odds Complete Endor on UNLEASHED difficulty.

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Centennial Acquire 100% of the Stars

Terror of the Ten Realms As Hela, land a 3-player KO streak in Yggsgard: Yggdrasill Path.

Midnight Completionist Gain all stars in 'Midnight'.

Cross the Threshold Complete Reclaimed Earth (Ancient Gods 2)

Tougher Than Nails Acquire all Sentinel Hammer upgrades (Ancient Gods 2)

Pure Lunacy Complete Dead Space™ 3 Awakened in Pure Survival Mode

Inevitable! Win 100 matches.
7/100

Splatter Killed downed enemy with rock

Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

Siege the Day Complete Immora (Ancient Gods 2)

Egg-stra XP! Complete the Egg-Stra XP challenge and then destroy a hive in the Onslaught DLC package.

Combustible!!! Finish the game on Dante Must Die Mode

Untouchable Use only one self revive care package in the "Special Delivery" Special Ops mission.

Big Brawler Get 10 consecutive zombie melee kills before Insta-Kill expires. (Map Pack 2 only)

Homo Superior As Magneto, assist Mutant allies 10 times.

Birdseye In a Single Player game, kill a bird with an arrow

Commercial Fisherman Be in a game when 6 or more fish are killed with a stick of dynamite

Spider-Sense Tingling! As Spider-Man, detect an enemy with Spider-Sense and land a winning counterattack.

Hypersonic Complete all Secret Encounters in a single save slot (Ancient Gods 1)

Platinum Trophy Unlock all trophies

Divine Justice As Thor, strike down 4 enemies with a single use of God of Thunder.

Horsepower Completionist Gain all stars in 'Horsepower'.

Special Election Rescue Russian President Volodin from the prison camp

dr0n3d Complete the "Arctic Recon" Special Ops mission in under 3:30.

Topped Off Attain maximum life and mana possible without accessories or buffs.

A Nightmare On Kusi Street Purge the Infestation on the Mainland

Rest Your Weary Fists Kill the Dark Lord (Ancient Gods 2)

High Roller Complete the "Iron Clad" Special Ops mission on Veteran difficulty.

Perk-a-Holic Have all four perks simultaneously active in a game of Nazi Zombies. (Map Pack 2 only)

Medic Revive 10 co-op players

Skilled Adversary In IX have a Challenge banner with all 9 medallions

You should be looking for Timmy Build a gazebo in a Single Player game