Zumoariku

Slight Silver Achieve 5 Silver Stat Awards.

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Stuntman Successfully perform an action hijack.

250 Headshots Defeat 250 Enemies with Headshots

Power Lunch Collect 25 Power Cells

Games History Major Play Maniac Mansion

Lethal Purchase all skills in all categories.

That'll Hold 'Em Use Wooden Boards to board up a window.

20 Kills: Desert - 5 Kill 20 Enemies with the Desert - 5

Most Annoying Guest Ever Ring the front desk bell 100 times

Shiny Happy Steeples Connect the Eco Beams

Hip to Add Squares Increase your inventory slots.

50 Kills: Moss - 12 Kill 50 Enemies with the Moss - 12

Good While It Lasted Complete memory sequence 2.

Energy Conscious Turn off the television

30 Kills: Mk-NDI Kill 30 Enemies with Mk-NDI Grenades

That'll Show 'em Complete Payback.

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

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

Tonight's Featured Event Defeat Lurker Ambush in Arena

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

Charted! - Normal Finish the Game on Normal Without Changing the Difficulty

Olive Branch Return the stamp album to Weird Ed

Strange Acquaintance Rescue Jacob from the gulag

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

Rapid Recovery Heal yourself in combat 3 times

Buzzin' Collect 28 Scout Flies

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

A Vault-like Mind Open a portable safe.

Stop, Drop, & Roll Defeat 3 Majini at once by setting oil canisters on fire.

Gold Rush Achieve 5 Gold Stat Awards.

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

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

Recurring Nightmare Face your biggest fears and keep your sanity

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

Moronic Drone Get a job

Drive By Stop an armored truck by taking out the driver.

Only George Can Destroy a Tree Destroy a cherry tree

Only Hoagie Can Make a Tree Create a cherry tree

Professional Fortune Hunter Find 40 Treasures

Pop Goes the Lurker Destroy the Balloon Lurkers

Rap Sheet: Yegg Open the safe

Rap Sheet: Kleptomaniac Pick up 30 things that don't belong to you

Novelty Enthusiast Get all six novelty items

Brutal Slugger Kill 20 Enemies with Brutal Combo

That Only Works with Alligators Try to flush the hamster

Purple Pain Navigate the Purple Precursor Rings

Obvious, Really... Make it rain

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