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Hunter Hunt an animal during the story.

In the Dark Completed Chapter 11.

The Heart of a King Completed Chapter 10.

End of Days Completed Chapter 12.

Master Ninja Complete any level using only the knife to kill enemies.

Redemption Completed Chapter 13.

Spinning a Yarn V Completed 40 sidequests.

Jellyfishing Complete Squidward's Mission in Jellyfish Fields.

That Sucked! Defeat the mutated Dimitrescu.

Get the Ball Rolling Solve a Labyrinth.

Bird on the Ground Shoot down an enemy helicopter with an RPG in the single player campaign.

The Escape Complete 'Hunted' and 'Death From Above' on Veteran difficulty.

The Bog Complete 'The Bog' and 'War Pig' on Veteran difficulty.

No Matter What - Normal Complete the game on Normal

Photographer Use Photo Mode.

The First Horseman Complete 'Shock and Awe' on Veteran difficulty.

Homecoming Completed Chapter 14.

Desert Storm Find the Desert Eagle in 'Crew Expendable' and kill 5 enemies with it.

Got No Strings Defeat Donna and Angie.

New Squadron Record Complete the cargo ship mockup in less than 19 seconds.

Self-Mastered Activated 50 ability nodes.

The Second Horseman Complete 'Safehouse' on Veteran difficulty.

Arkham City Sirens Drop in on an old friend

Fish Out of Water Defeat the mutated Moreau.

Dragon Slayer Complete the mission "Best Minion Ever".

Never forget Find 5 historical items

Chosen King Defeated Ifrit on Normal difficulty.

Temporary Measures Place the Giant's Chalice in the ceremony site.

Up Urs! Defeat Uriaș in the stronghold.

Time Paradox Kill Makarov and complete your mission

The Man in the High Tower Find and use the hidden cache in 'Heat'.

Sock Getter Find 15 of Patrick's Socks

The Root of the Matter Find the Megamycete in the underground ruins.

Iron Giant Down Defeat the mutated Heisenberg.

Great Dad Finish the story on at least Casual difficulty.

Repairer Combine a treasure into its complete form.

Are you ready now? Talk to Squidward 10 times as SpongeBob.

Can't Touch This Kill 20 enemies in a row without taking damage.

Don’t Go - Easy Finish Left Behind on Easy

Mouths Wide Open Kill a Volatile

Good doggy Pet the dog

Dogs. I Hate Dogs. Kill 20 attack dogs with a knife.

Brick Master Win the brick throwing contest

Man versus Machine Alert the enemy helicopter in 'All Ghillied Up' and take it down.

Star Smasher Defeat 100 robots as Patrick

Your Show Sucks Destroy all the TVs showing Al-Asad's speech.

Sweet Victory Defeat Robo-Sandy in the Poseidome.

A new friendship is born Shoot the tractor before it crushes Emile

Hotel California Fight through the Halperin Hotel to make contact with the authorities.

A Road Less Traveled Complete the mission "The Road To Sanctuary".