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Killer Croc Have the final hit come from the crocodile in Slaughter Swamp

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

A Good Dam Fight Defeat the Battlelord on the Hoover Dam

Not kidding! Reach the podium in a total of 30 Quick Races (not unlockable in Split Screen mode).

Pipe Coordinator Placed 9 types of furniture in Kat's Pipe House.

Perfect Timing Complete 100% of the Time Trials

Metamorphosis Rescue all of the imprisoned grubs

Thanks for coming! Complete a Main Event in a Custom Track created by another player

Take part in an Online Marked Man Awarded for taking part in an Online Marked Man.

SpongeLock HolmesPants Find the secret Spatula in every level

Hope Turned the tide of the conflict.

Mass Production Produce 100 objects from your builders

Lifting the Curse Complete the Port Royal episodes.

Keep it up! Race a total of 50 miles (80 km) with any bike

Playdate Visit a friend's Backyard Battleground, or have a friend visit your Backyard Battleground.

Art Aficionado Buy art in the gallery

Liberty City (5) Your friends all like you above 90%.

Majima From Below Assaulted by Majima from a manhole.

Where do I sign? Sign a contract with any 450 Sponsor in Career mode

Battering Ram Shield Bash 5 different thugs

A Budding Romance Complete the Beast's Castle episodes.

Going Ape Throw 3 kegs during a match with Gorilla Grodd at the Ace o' Clubs

Las Vegas Event Win a Main Event at Las Vegas in any game mode

Running Errands Complete all side missions

Synthesis Amateur Synthesize 15 types of items.

Break it Down! Breaker Majima forced his way into a fight.

Great Outdoors Endurance Challenge: Survive for 10 days

Stuck on You As a Scientist, Vanquish 10 Players with the Sticky Explody Ball

Stunt Driver Get 100 stunt driver points.

Judge, Jury, Executioner Execute 20 aliens

The Good, the Bad and the Krabby Catch Mr. Krabs in under 3 minutes

Take part in an Online Stunt Run Awarded for taking part in an Online Stunt Run.

Frequent Flyer Zip Kick 5 different thugs

The Cat Came Back Break into Riddler's secret hideout and exact your revenge.

Blue Ribbon Complete a 4-player Competitive Co-Op match in 1st place. (Online co-op Only)

Flame Dancer Obtained all Master Arts for Panther.

Master of the Line Beat Clarence Bishop the Third, the Pro Racing heir, in the Rival Event.

Oakland Event Win a Main Event at Oakland in any game mode

Lunar Vortex Grabbed 5 enemies with one Lunar Style Vortex Field.

Fashion Aficionado Change into 10 different pieces of clothing

Old Fashioned Beat Down Complete HARM Challenges I to V

All Snug in Their Beds Uncover the secret history of the park.

Burning Rubber! Drift Boost a total of 500 times.

Minneapolis Event Win a Main Event at Minneapolis in any game mode

Ahoy Matey Summon a Barrel Pirate and Map Pirate Zombie in Gardens & Graveyards

A cunning warrior Reach level 3 once with any Trait (Multiplayer)

Vacation Endurance Challenge: Escape the forest after surviving for 7 days

Skinchanger In solo ops, swap to another character.

The Gift of Love Complete the Halloween Town episodes.

Lifetime Service Award Completed all side missions.