The alleyways in the Bowery hide a lot more than just question marks.

Gotham has aged like fine wine, thanks to its modding community.

Different from Joker’s Balloons.

Selina gets her own collectibles.

Hidden beneath the pipes and gratings are more riddles to solve.

Locate the mysterious stalker.

The best upgrade of the game.

Prove your combat mastery in a series of challenge maps.

Prove your gliding, combat, and stealth capabilities.

Blind Hugo Strange by destroying all of the security cameras.

Solve all the crime scenes to find Deadshot before he kills any more people.

From solving riddles to finding trophies to breaking statues to popping balloons to what not.

Clear out the Steel Mill to advance the Riddler Challenge.

Clearing up more question marks.

Breaking statues instead of stealing declarations on this night at the museum.

Seek out and destroy her inflated heads in the Steel Mill.

Be untouchable.

Break the ice with 12 different takedowns.

The main base of operations of the Joker.

Head underground for the Riddler Challenge.

Solve every single riddle the Arkham City Museum holds.

Deciphering the Riddler’s clues in The Bowery.

Some of these riddles are not amusing at all.

Get your hands on all the Riddler Trophies from every nook and cranny of the Museum.

More question marks to add to your Riddler collection.