Algebrain

Master of the Tear Double Teamed with every Drowning Doom unit

Crime Is a Terrible Thing to Waste Surf the sewers and sabotage Clayface's masterpiece

Wave Goodbye Defeat Cetus.

Employee of the Month Kill Vernon

Scene Stealer Use a Power Pick twenty times

I LOVE PUNCHING! Complete the Punchy Target mini-game.

Victory Tour Revisit all brains after completion.

Teabaggin' Taunt 25 times in any Multiplayer match

Serpent Spanker Freed 80 Bound Serpents

Santa's Sweatshop Complete the "Santa's Sweatshop" level

My Lucky Number Complete 7 Daily Tidy's
4/7

What Goes Around Use a Karma Power.

The Cold, the Bad and the Ugly Stop Harley Quinn's spectacular siege at S.T.A.R. Labs

Favored Acquired 3,000 Fire Tributes

Why are you running?! Kill a Disruptor

Bird is the Word Taunt 5 times in a row with Peter

Be The Chaos Bat every name (first or last) and job title in the credits

Sqweeky Clean Complete 7 consecutive Daily Tidy's
4/7

Unstable Stacker Complete the tower by using every available spot

Stewie-nator Kill 500 enemies using Stewie

I Think They Were Impressed Introduce all Camp Kids to Mr. Pokeylope.

Master of the Blood Double Teamed with every Tainted Coil unit

Harmonized Purr Purr-fect rhythm

Chickens In Space Complete the "Chickens In Space" level

Keep Away Quick like a cat

2+2=/=5 Reach a human combo of 5

Chicken Fight! Complete the "Chicken Fight!" level

Swipe Master Get 100% correct answers on a Sorting question

Show off Win an online normal survival match without using any magic.

No More Secrets Crack all Vaults.

Happy Bags Sort all Emotional Baggage.

Tricky Complete the slope jump in "Ice" with 2 snowboards strapped to your feet

Timber! Complete Techno Forest in arcade mode on any difficulty

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Neat As A Pin Complete 14 Daily Tidy's
4/14

Wishful Thinker Complete 10 Wishes.

Full Master Earn all Gold Medals available in Mastery Challenge

Look at me go Complete a feat

It's Nice to Be Wanted Defeat each of Gotham's Most Wanted present during the KELVIN Incident

Coolest Thing Ever Jumped over a Hextadon in the Deuce

Two-week Sweep Complete 14 consecutive Daily Tidy's
4/14

Element of Surprise Break Supercharged criminals 50 times using Elemental Effect weaknesses

Finally Home Complete every Adventure level in The Journey Home.

Overkill Completed all hunting secondary missions

Planks? No Thanks! Complete "Dark" without moving any planks that are barring doors

Flip the Calendar Complete 30 Daily Tidy's
4/30

No Place Like Home Complete the "No Place Like Home" level

Wrecking Ball Smash your opponent into something 20 times in the "Chicken Fight!" level

Been Doin' This For Years Be a good cook and earn a Good rating for Stage 4 on Normal difficulty.

Hole In One Complete "Golf"