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Hard Boiled Kill an enemy with shotgun

Battle of nerves Caught the last mouse with only one piece of cheese left to grab! (playing as the VR Cat).

Flyboy Protect the bombers by personally shooting down 12 enemy planes in Battle of the Bulge.

Event Horizon Defeated 10 enemies with one Micro Black Hole.

"It" Kept You Busy Defeat Pesanta in Separate Ways.

The Cat Came Back Break into Riddler's secret hideout and exact your revenge.

Sewer Aficionado Discovered every mysterious warp manhole.

Eye of the Tiger Win 15 matches in Survivors.

I'm not Robin Hood Complete Arrow level after achieving True Hero status

Ups & Downs Meet Ika-Ika

Rescuer Save 10 unique allies locked in struggle.

Skill Gap Superman must defeat Green Lantern with the final hit coming from Final Flight

Beloved and Precious Commit to a romantic relationship.

Liberator Liberate three keeps in a single playthrough.

Good Fences Don't allow any counter-attackers into the Washington Square base

Juggler Simultaneously burn, freeze and poison 4 separate enemies

Lucky We Met! Whoa, I'm really mixing it with the celebrities here! C'mon, Rashid, you're the Raging Storm! Get out there and finish 5 Character Stories!

Double Trouble Play with a friend for the first time.

Pipe Coordinator Placed 9 types of furniture in Kat's Pipe House.

Time to Party Harder Margaret joins the dance

Groundbreaking Use every interactable and win in a multiplayer match

New sheriff in town! Clear the Sheriff level in Wanted!

Just Sprouted Complete 'Boom Tombs'.

Devil's Brigade Found all Dog Tags in the game

Incredible Power! Learned all basic power-up skills.

A Feast for Two Endurance Co-op Challenge: Eat the meat of 3 bears with your partner

Pizza Party! Complete The Squad level

All Snug in Their Beds Uncover the secret history of the park.

It's simple... Defeat Batman (Dark Knight Trilogy) as the Joker (Nurse) character

That Familiar Rush Watched replay data from Score

Cardboard Companions You found all of your cardboard buddies.

Goromi the Hostess Met the mysterious lady, Goromi.

Spiked Club Acquire spiked club

Father Rememberance Find your Father's memento

Level not complete! Complete Bizarro level

Hidden Agenda Discover 15 secret areas

Love Connections Performed a full combo on a track

Butterfly Took down the jet in one attempt in Rock And A Hard Place

Bazillionaire You earned over 10,000,000G total.

Moonbear Safely launched Zephyr-III. Mission Opera is a go!

So-Called Perfectionist Earn any N.Sanely Perfect Relic

Invincible Defeat 2,500 enemies in single-player mode.

Team Arrow Set both Free Play characters as John Diggle and Felicity Smoak

Kabegami Learn how to use Catwalk.

Every Nook and Cranny Collect every collectable in the game.

Now that is what I would call a multi-kill! Kill 7 enemies within a very short time using only your primary weapon.

Free Flow Fifty Reach x50 Combo in the Main Story

Top Agent Bonus for completing the game on Normal difficulty.

Hot Potato! Throw back a live grenade.

Gold Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Batman)