After completing the story mode on the Villain side you will be able to purchase everyone except the character Hush. To unlock Hush you will have to find and save all 25 hostages. Then you can purchase Hush as well to unlock the achievement.

Note: You can use codes to unlock all the other characters, but Hush must be unlocked by saving hostages.

This is easiest done on either the first Hero mission or the first Villain mission. Simply take your time and collect any hearts that drop to keep your health up.

As the description states, you can not have ANY extras enabled when trying for this achievement.

For this you will need to do the following:

• Finish all story modes.
• Find all 300 collectibles.
• Find all 25 hostages.
• Find all 30 red bricks.
• Purchase all characters/vehicles.
• Purchase all suit upgrades/extras.
• Purchase all tidbits in the Data section.

In the Villain level "Lure of the Night" (Episode 3, Chapter 4) you will build a giant clown robot. Once you've built that, continue down the street and some cop cars will show up. Walk over each of them to destroy them.

Note: If playing co-op, make sure you are in the driver's seat of the robot and not the gun-turret seat on its head or you won't get the achievement.

As there are 30 levels, 5 will not have a hostage to save. For a complete list to find them all, go here.

To see if you have saved a hostage, go to the mission selection computer for any episode and hover over a number. There will be a happy or sad face next to the circle if you have or have not saved the hostage in that mission. If there is no face, that is a mission without a hostage.

You have a bar at the top of your screen which will fill when studs are collected, just fill it up completely on every level, both the Villain and Hero side and you will get this.

Tip: Use the cheats to unlock all the stud multipliers (see "Richest Man in Gotham") and use them from the beginning. You will get it after destroying just a few objects.

There are 15 suit upgrades, one for each red brick you can find on the Hero side. Find all the bricks, then purchase all the upgrades for the achievement.

Note: You can also just use the unlock codes for all 15 to get the achievement and bypass the need to collect the brick in the levels.

You will need four billion (4,000,000,000) studs to max out the counter. Since cheats do not disable achievements, I would suggest using the multiplier cheats and using them the entire time you play the game (story mode and free play) to make this go quickly.

You should get this after finishing the final Hero mission, just make sure that during your boss fights, you make the killing blow on each of these chracters while controlling Batman. If you kill them while controlling Robin, the achievement will not unlock. Replay the necessary story missions in Story Mode if you messed up.

• Joker: To the Top of the Tower (Episode 3, Chapter 5)
• Two-Face: The Face-Off (Episode 1, Chapter 5)
• Riddler: The Face-Off (Episode 1, Chapter 5)
• Catwoman: There She Goes Again (Episode 2, Chapter 1)

When playing as a character with superstrength (Bane, Clayface, Killer Croc, Man-Bat), press B and then B again to throw an enemy. This must be done 50 times on Policemen.

The easiest way to get this is to go into Free Play with Gordon and Harley. Take control of Harley and hit B near Gordon to break him in one shot.

This can also be done during story mode during the Gordon fight. When he has one heart left, use Harley to kill him with the B button.

Like Wayne Manor you will need one million studs to finish this. But, unlike Wayne Manor, there is way more then one million studs total. No real need for a guide, just run around smashing everything in sight and you will get it in no time.

You will need to get Super Villain on all 15 Villain missions to unlock this room.

At the very beginning in the level "A Poisionus Appointment" (Episode 1, Chapter 4) of the Hero campaign, you can build a carrot patch. Place a bomb in the middle and get out of the way and hold B and detonate the bomb and you should get this.

Can also be done during the Clayface fight in "You can Bank on Batman" (Episode 1, Chapter 1) of the Hero campaign by blowing up all the silver bars on the left side of the vault.

You can get this on the level "Little Fun at the Big Top" (Episode 3, Chapter 2) of the Hero campaign. When you get to the part where you see some stores you can go in there are about 10 flags. Target all of them so the yellow box is around all 10 and you should destroy them all and unlock the achievement.

Can also be done in either of the sections mentioned for Destroyer of Worlds.