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God Killer Kill Ares

Stick it in Your Cap! Collect all the Phoenix Feathers

Don't Leave Her Hanging Rescue the Oracle with 10 seconds to spare

Know the Drill Complete a Practice Drill

Born Free Escape from Intensive Treatment to the island surface

Freeflow Combo 10 Complete a combo of 10 moves (any play mode)

Hitman 2 Get a 200 Hits Combo

Intellectually Superior Complete all optional tombs.

Archaeologist Collect 75% of all relics.

Feather Duster Kill and loot 10 flying animals (crows and gulls).

Rap Sheet: Trespasser Find Fred's basement workshop

Arkham Analyst Solve 5% of Riddler challenges

Legend of the Twins Watch the 'Birth of the Beast' Treasure

The Collectivist Collect 125 Precursor Orbs

Just What The Doctors Ordered Save all the doctors in Medical

Drill Sergeant Complete every Practice Drill (any difficulty)

The Collectationator! Collect 286 Precursor Orbs

SARPBC Forever Play one game each with Octane and Backfire

Bag Full O' Cache Find 75% of GPS caches.

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Splash Kiss the Nyad

The Bright Master Discover some of the Wraith's past.

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Car Collector Collect 5 Cars

Done Done Done For excellent and dedicated field work in the field of battle for completion

Lethal Purchase all skills in all categories.

Not Raised in a Barn Close a door

Scout of the Morannon Successfully complete a Survivalist Challenge.

Games History Major Play Maniac Mansion

Breaking And Entering Gain access to Arkham Mansion after it is locked down by the Joker

Strike True Unlock 2 Bow Rune slots.

Most Annoying Guest Ever Ring the front desk bell 100 times

Energy Conscious Turn off the television

Boom Goes the Dynamite Shoot a bundle of dynamite out of the air.

Dude, It's Like, Cannibalism Hoagie eats a Hoagie

And Then the Universe Implodes Try to mix the disappearing ink with Booboo-B-Gone

Recurring Nightmare Face your biggest fears and keep your sanity

Olive Branch Return the stamp album to Weird Ed

Zsasz Cut Down To Size Save Dr. Young from being killed by Victor Zsasz

Rap Sheet: Thief Pick up 15 things that don't belong to you

I'm Sure He'd Never Notice Try to swap the textbook with the stamp album

Clean Up Your Act Defeat Sasha.

No Stone Left Unturned Find all documents, relics and GPS caches.

True Potential Purchase every upgrade for a single power.

Solitary Confinement Capture and lock up Harley Quinn

Freeflow Combo 20 Complete a combo of 20 moves (any play mode)

Lateral Thinker Solve 25% of Riddler challenges

And Then the Universe Explodes Try to mix the decaf and caffeinated coffees

Moronic Drone Get a job