OmegaOptimus

Arcade Addict Clear the Arcade Battle in Offline Mode.

Make it Raaaaaid Vanquish the Ancient Dragons of Destruction.

Collateral Damage Defeated an enemy with the explosion from a fuel tank.

Making Some Noise Gained five noisemakers through lockpicking.

Rookie Wrangler Captured a chocobo.

Valley Wanderer Defeat 1st Colossus

Collector of Memories Collected 5 Knowing Tags.

The Executioner Landed Killsight strikes on 100 enemies.

BUDDY!!! Send a Tower Challenge to a friend

Laser Powered Vengence Earn 42 Gems.

Beware of the Lagomorph Kill 30 enemies with the Clockwork Bomb

Love That Money Collect more than 5,000,000 G.

Vague Remembrances Completed "Memories of Poison."

Gadabout Discover all named locations in Oasis and the surrounding Pirate's Booty areas.

Brute Force Defeat 100 enemies with the Lead Pipe in Scenario Campaign Mode.

Eggs-citing Development Hatched 5 chocobos at the chocobo ranch.

You're Not Murasaki Complete Chapter 11.

The Fire's Light Completed "Memories of Fire."

Hard Work's Reward Completed a secret training session.

What time is the test? Win a Quick Race on any track in the College Campus (not unlockable in Split Screen mode).

Practice Makes Perfect Defeated a total of 20 enemies in combat simulation sessions.

Enemy Hunting Enthusiast Defeat 1000 enemies in Scenario Campaign Mode.

Anyway, Here's "Firewall" Activate the Backburner's firewall.

Expert Creator Complete all levels in the Tutorials

Phantom Memories Completed "Phantoms of the Past."

It's All Coming Back to Me Recover your memory in Scenario Campaign Mode.

The Lord of Bones Complete The Lord of Bones

The Earth's Light Completed "Memories of Earth."

The Hunted Becomes the Hunter Won 50 encounters in the overworld.

Moogle Mingler Talked with the moogles from all thirteen classes.

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

Secret of Souls Harvested 500 phantoma.

Shared Recollections Completed "To Remember."

Venting Frustration Spend 7 minutes on steam vents

Ghost Vanquisher Defeat 30 Ghosts.

Thirsty Fighter Pick up 50 drink items in Scenario Campaign Mode.

Treasure Enthusiast Collect 100 treasures in Scenario Campaign Mode.

Just Peachy Collect all the Peaches in the Scroll of Destiny

Light the Fires! Earn 10 Relics (gold or better).

You're good! Reach the podium in a total of 10 Quick Races (not unlockable in Split Screen mode).

The Water's Light Completed "Memories of Water."

The Key to Victory Obtain the boot-up key in Scenario Campaign Mode.

Never Saw It Coming While invisible, used Peeping Tom to knock out 15 enemies with a melee attack.

Hearts Out, Dukes Up Complete Chapter 12.

Playing With Fire Defeat 100 enemies with the Flamethrower in Scenario Campaign Mode.

The Toll of Kings Complete The Toll of Kings

By Your Command Collect the Interdiction Stone

Awesome view! Win a Quick Race on any track in the Skyscraper (not unlockable in Split Screen mode).

Perfect Boss Beat the first boss without dying.

Respec Yourself Your First Respec