Arkham Asylum Achievements [Guide]
Description: There are 47 achievements in Arkham Asylum. Difficulty achievements stack, so getting them on Hard means you get them on Easy and Normal as well. All secret achievements are story related and not able to be missed.

***Spoilers throughout***

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*Riddler Challenges [Guide]
The Riddler Challenges in Batman: Arkham Asylum can be a daunting task, there are a lot of them and they can be tricky, but that is why we are here.

Read the Guide --> *Riddler Challenges [Guide]

Secret Room in the Warden's Office, Reference to Batman: Arkham City [Easter Egg]
Description: In the Warden's Office, head back to the room with the Warden's portrait on the far wall. Turn left as soon as you enter the doorway and approach the wooden wall. You can destroy this with Explosive Gel. It may take a bit of trial and error, but one panel can be blown away. Beyond this is an unmarked room with a blueprint on the wall. It shows plans for the relocation or expansion of Arkham to Gotham City. This is a nod to the setting of Batman: Arkham City.

Challenges
Description: Unlock additional Challenges, you will need to play Story Mode. Most Challenges can be unlocked by finding certain Riddler Trophies. Here is a complete list of the Challenges
with the Riddler Trophies that unlock them. Some Challenges are unlocked just by playing the game.

Intensive Treatment	???
Silent Knight	???
Sewer Bat	???
Record Breaker	???
Shock and Awe	Find the Riddler Trophy for Botanical Gardens Riddle # 24
Survival Tactics	Find the Riddler Trophy for Caves Riddle # 20
Rumble in the Jungle	Find the Riddler Trophy for Caves Riddle # 9
Invisible Predator	Find the Riddler Trophy for Arkham Island, West Riddle #9
Intensive Treatment Extreme	Find the Riddler Trophy for The Penitentiary Riddle# 8
Silent knight (Extreme)	Find the Riddler Trophy for Botanical Gardens Riddle # 29
Sewer Bat Extreme	Find the Riddler Trophy for Intensive Treament Riddle # 30
Record Breaker (Extreme)	Find the Riddler Trophy for Caves Riddle# 19
Shock and Awe (Extreme)	Find the Riddler Trophy for Medical Riddle # 28
Survival Tactics (Extreme)	Find the Riddler Trophy for Mansion Riddle # 29
Rumble in the Jungle (Extreme)	Find the Riddler Trophy for Caves Riddle #23
Invisible Predator (Extreme)	???

The Final Chronicle of Arkham Riddle
Description: After you have snapped a shot of 23 of the 24 of the Chronicle of Arkham markers, you will need to track down the final marker. The key to solving the mystery of Arkham is the Warden, whom you last saw in the Security Control Room. Head to this room in the Penitentiary and enter the small central office area. Look on the floor for a circle of scribbles and etchings that say "BATMAN."
Enter Detective Mode and take an Environmental scan of this to complete the final Chronicle of Arkham Riddle.

Armored Batman
How to: Beat story mode to unlock Armored Batman for Challenge Mode. Armored Batman has a bit more health than regular Batman. You will be able to select Armored Batman before beginning a Challenge.

Finishvthe game
To finish the game

How to beat killer croc in the VERY beggining of the sewer level
Make sure that you have explosive gel selected,then go to the very first platform, and run around on it. Next, turn around and run back to where the doorway of the entrance to his lair is. By running on that platform, you have allowed killer croc to find you. He will come running at you, so at the last second where he's about to get you, detonate the explosive gel and-BOOM! He springs the trap early, sending him down the pit, and now you don't have to worry about him any longer. TAKE THAT,YOU STUPID REPTILE-HA!HA!HA!HA!HA!

Another way to beat killer croc at the VERY beggining of the sewer level
YO! what's up? The sky, that's what's up! This is The Dark Knight, the same guy who told you how to beat killer croc,(or K.C.) Now, if you have selective detonation for explosive gel, spray that on the first platform. Next, turn around and run back to where the doorway of the entrance to his lair is. By blowing up the gel on that platform, you have allowed killer croc to find you. He will come running at you, so at the last second where he's about to get you, detonate the explosive gel and-BOOM! He springs the trap early, sending him down the pit, and now you don't have to worry about him any longer. TAKE THAT,YOU STUPID REPTILE-HA!HA!HA!HA!HA!-By the way, I used copy and paste, It ROCKS!

Suits for ps3
They should make a cheat for batman beyond suit

PS3 Cheats for Batman: Arkham Asylum (Game of the Year Edition)

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