Batman: Arkham City riddler and side missions: informants, trophies and investigations
Use Riddler informants, track optional cases and distinguish Batman trophies from Catwoman collectibles.
Edition covered
The original 2011 Arkham City campaign; WB Games Steam pictures show the PC Game of the Year Edition. Catwoman content is identified separately. Return to Arkham and Wii U Armored Edition differences are outside this guide.
Interrogate the green informant last
Detective Mode identifies Riddler informants. Defeat their companions while leaving the informant standing, then use the interrogation prompt to reveal challenge locations.
| Clue | Action | Reason |
|---|---|---|
| Green informant | Leave standing for interrogation | Reveals challenge positions |
| Trophy cage | Inspect surrounding mechanism | The switch may be outside the cage |
| Environmental riddle | Scan the named subject | A collectible pickup is not required |
| Pink Catwoman trophy | Return as Catwoman where needed | Batman cannot collect her entire set |
Treat each side mission as its own case
Zsasz phone calls, Deadshot evidence and the Watcher sightings follow different clues. Select the relevant case in the mission interface instead of expecting the main objective marker to lead to everything.
| Case | Look for | Useful habit |
|---|---|---|
| Cold Call Killer | Ringing payphones | Plot the next route before gliding |
| Shot in the Dark | Victims and ballistic evidence | Scan the scene thoroughly |
| Watcher in the Wings | A distant observer | Scan the symbol left behind |
| Acts of Violence | Prisoners under attack | Listen while travelling between rooftops |
Separate Batman and Catwoman collection
Catwoman’s content has its own pink trophies and movement routes. Some puzzles involve the two characters differently; check the collectible color and the current playable character.
Solve mechanisms before chasing map icons
A trophy marker identifies a location, not a complete solution. Inspect pressure plates, timers and nearby walls, then choose the appropriate gadget and standing position.
A trophy marker identifies a location, not a complete solution.
References
| Reference | Website |
|---|---|
| Batman: Arkham City publisher listing | store.steampowered.com |
| Official Arkham City manual | store.steampowered.com |
| Arkham City campaign walkthrough | gamefaqs.gamespot.com |
| Mr. Freeze encounter methods | gamefaqs.gamespot.com |