Collect coins to completely fill that bar in a level.

Use the following customizations.
Face: Bruce Wayne
Hair: Short blonde
Gloves: Green
Torso: Orange
Belt: Black or green
Pants: Green
Weapon: Any

Get a 'True Villain' rank on all levels in the Villain storyline. To reach the mission, go to right of the Batcomputer. Go down the ramp and pull the lever to get to the villains. Go through the door on the right and look in the corner to reach the memorabilia room. Climb the ladder at the top to access the Arkham level.

Complete the indicated task to unlock the corresponding character.
Alfred Pennyworth: Complete 'The Riddler's Revenge'.
Bane: Complete 'Rockin' The Docks'.
Barbara Gordon (Batgirl): Complete 'The Riddler's Revenge'.
Catwoman: Complete 'Stealing The Show'.
Clayface: Complete 'The Riddler Makes A Withdrawl'.
Commissioner James Gordon: Complete 'The Riddler's Revenge'.
Dick Grayson (Nightwing): Complete 'The Riddler's Revenge'.
Dr. Victor Fries (Mr. Freeze): Complete 'On The Rocks'.
Harley Quinn: Complete 'A Surprise For The Commissioner'.
The Joker: Complete 'A Surprise For The Commissioner'.
Hush: Rescue all 25 hostages.
Man-Bat: Buyable After Complete 'Zoo's Company'.
Penguin: Complete 'Rockin' The Docks'.
Poison Ivy: Complete 'Green Fingers'.
Ras Al Ghul: Get a 100% game completion by assembling all mini-kits. Note: You must first spend 4 billion studs to unlock the last data item after buying all other data items.
Riddler: Complete 'The Riddler Makes A Withdrawl'.
Two-Face: Complete 'An Enterprising Theft'.

Use the following customizations.
Face: Any
Hat: Red Batman mask
Gloves: Red
Torso: Plain red
Arms: Red
Belt: Red
Pants: Red
Weapon: Batarang

Use the following customizations.
Face: Nightwing
Hat: Ninja mask
Gloves: Black or red
Torso: Plain red
Arms: Red
Belt: Black
Pants: Red
Weapon: Gun

Use the following customizations.
Face: Man-bat
Hat: Short black
Gloves: Black
Torso: Tux with bowtie
Arms: Grey or black
Belt: Black
Pants: Black
Weapon: Batarang

Complete a level with The Joker. You should then have him in the prison. Go to the experiment room at the prison. Start zapping the Joker Henchmen that will keep walking into the room. Zap the villain that follows you every so often. Every time you zap the villain that follows you, the Henchmen will an increasing number of studs after they are zapped and killed.

Use the following customizations.
Face: Robin (African/Black for John Stewart)
Hair: Short brown (Black for John Stewart)
Gloves: White (Black or brown for John Stewart)
Torso: Plain green
Arms: Black
Belt: Green (Black for John Stewart)
Pants: Black
Weapon: Batarang

Use the following customizations.
Gloves: Caucasian
Face: Normal Caucasian
Belt: Black
Pants: Black
Arms: Black
Torso: Alfred Pennyworth
Hair: Short black
Weapon: Pistol

Use the following customizations.
Gloves: Caucasian
Face: Angry
Hair: Long black
Torso: Plain white
Arms: Caucasian
Legs: Blue
Belt: Brown
Weapon: Batarang

Power bricks can be found at the following locations.
You Can Bank On Batman: Hidden on the left side of the cage that Clayface stands on.
An Icy Reception: In the building behind the catwalk after you find the ice cream on the floor. You must glide to it from where you built the grappling grab spot. You will also need to do it in Free Play mode because you need someone who has super strength such as Clayface or Mr. Freeze.
Two-Face Chase: The power brick is hidden in the final stage of the level where you fight Two-Face. It is in the top left corner of the park on the left and is behind some explosive barrels.
Riddler Makes A Withdrawal: Build a car out of the pieces of the neon light on the side of one of the buildings after you come out of the elevator. Take the car to the area where you build the wrecking ball. In the top right corner is a car compacter. Roll the car in there then mind control the person to pull the second lever. Note: This must be done in Free Play mode.
On The Rocks: In the first room after you come inside, freeze all of the ice cream floats and go across them. Do not mind control the person and raise the level. At the end of the floats is an iron gate. Blow it open and go inside. Go up the ladder and down to where the hanging bars are located. Break the crates, build the switch, cross the bridge, and complete the glass sculpture. Note: This must be done in Free Play mode.
Green Fingers: In the room where you first use your power to grow plants, there is a ledge above the big plant thing. There are iron bars blocking the left passage of this ledge. Blow it open and use Robin in the Attract suit to build a truck with a cake in the back. Bake the cake and the brick will appear. Note: This must be done in Free Play mode.

Use the following customizations.
Face: Nightwing
Head: Black ninja mask
Gloves: Black
Arms: Caucasian (Peach color)
Torso: Plain yellow
Belt: Yellow
Pants: Plain black
Weapon: Batarang

Use the following customizations.
Face: Alfred Pennyworth
Hat: Red baseball cap
Gloves: White
Arms: Red
Torso: Plain red
Belt: Blue
Pants: Blue
Weapon: Any
Note: To create Luigi, use the same customizations except change all the red to green.

Use the following customizations.
Face: Bruce Wayne
Hair: Robin
Gloves: Caucasion
Arms: Blue
Torso: Plain blue
Belt: Red
Pants: Blue
Cape: Red
Weapon: Batarang
Note: To create Supergirl, change the face to a woman's face and change hair to long blonde.

Use the following customizations.
Face: Angry (or Bruce Wayne)
Hair: Short black
Gloves: White
Arms: Black
Torso (Shirt): Plain black
Belt: White
Pants: Plain Black
Weapon: Gun

Use the following customizations.
Gloves: Black
Face: Nightwing
Belt: Black
Pants: Red
Arms: Red
Torso: Robin
Hair: Short black
Weapon: Batarang

Complete the indicated task to unlock the corresponding vehicle.
The Joker's Helicopter: Complete 'Biplane Blast'
Killer Croc's Swamp Rider: Complete 'Harboring A Grudge'
The Penguin's Sub: Complete 'Harboring A Grudge'
Scarecrow's Bi-Plane: Complete 'Biplane Blast'

Get a 'True Hero' rank on all levels in the Hero storyline. To reach the mission, go to where the vehicles are in the Batcave. Go to the far right then down to the bottom. Step on the elevator to go to the memorabilia room. The Wayne Manor mission is in upper left corner.

Collect coins to completely fill that bar in a level.

Get a 'True Villain' rank on all levels in the Villain storyline. To reach the mission, go to right of the Batcomputer. Go down the ramp and pull the lever to get to the villains. Go through the door on the right and look in the corner to reach the memorabilia room. Climb the ladder at the top to access the Arkham level.

Complete the indicated task to unlock the corresponding character.
Alfred Pennyworth: Complete 'The Riddler's Revenge'.
Bane: Complete 'Rockin' The Docks'.
Barbara Gordon (Batgirl): Complete 'The Riddler's Revenge'.
Catwoman: Complete 'Stealing The Show'.
Clayface: Complete 'The Riddler Makes A Withdrawl'.
Commissioner James Gordon: Complete 'The Riddler's Revenge'.
Dick Grayson (Nightwing): Complete 'The Riddler's Revenge'.
Dr. Victor Fries (Mr. Freeze): Complete 'On The Rocks'.
Harley Quinn: Complete 'A Surprise For The Commissioner'.
The Joker: Complete 'A Surprise For The Commissioner'.
Hush: Rescue all 25 hostages.
Man-Bat: Buyable After Complete 'Zoo's Company'.
Penguin: Complete 'Rockin' The Docks'.
Poison Ivy: Complete 'Green Fingers'.
Ras Al Ghul: Get a 100% game completion by assembling all mini-kits. Note: You must first spend 4 billion studs to unlock the last data item after buying all other data items.
Riddler: Complete 'The Riddler Makes A Withdrawl'.
Two-Face: Complete 'An Enterprising Theft'.

Complete a level with The Joker. You should then have him in the prison. Go to the experiment room at the prison. Start zapping the Joker Henchmen that will keep walking into the room. Zap the villain that follows you every so often. Every time you zap the villain that follows you, the Henchmen will an increasing number of studs after they are zapped and killed.

Use the following customizations.
Gloves: Caucasian
Face: Normal Caucasian
Belt: Black
Pants: Black
Arms: Black
Torso: Alfred Pennyworth
Hair: Short black
Weapon: Pistol

Power bricks can be found at the following locations:
You Can Bank On Batman: Hidden on the left side of the cage that Clayface stands on.
An Icy Reception: In the building behind the catwalk after you find the ice cream on the floor. You must glide to it from where you built the grappling grab spot. You will also need to do it in Free Play mode because you need someone who has super strength such as Clayface or Mr. Freeze.
Two-Face Chase: The power brick is hidden in the final stage of the level where you fight Two-Face. It is in the top left corner of the park on the left and is behind some explosive barrels.
Riddler Makes A Withdrawal: Build a car out of the pieces of the neon light on the side of one of the buildings after you come out of the elevator. Take the car to the area where you build the wrecking ball. In the top right corner is a car compacter. Roll the car in there then mind control the person to pull the second lever. Note: This must be done in Free Play mode.
On The Rocks: In the first room after you come inside, freeze all of the ice cream floats and go across them. Do not mind control the person and raise the level. At the end of the floats is an iron gate. Blow it open and go inside. Go up the ladder and down to where the hanging bars are located. Break the crates, build the switch, cross the bridge, and complete the glass sculpture. Note: This must be done in Free Play mode.
Green Fingers: In the room where you first use your power to grow plants, there is a ledge above the big plant thing. There are iron bars blocking the left passage of this ledge. Blow it open and use Robin in the Attract suit to build a truck with a cake in the back. Bake the cake and the brick will appear. Note: This must be done in Free Play mode.

Use the following customizations.
Gloves: Black
Face: Nightwing
Belt: Black
Pants: Red
Arms: Red
Torso: Robin
Hair: Short black
Weapon: Batarang

Complete the indicated task to unlock the corresponding vehicle.
The Joker's Helicopter: Complete 'Biplane Blast'
Killer Croc's Swamp Rider: Complete 'Harboring A Grudge'
The Penguin's Sub: Complete 'Harboring A Grudge'
Scarecrow's Bi-Plane: Complete 'Biplane Blast'

Get a 'True Hero' rank on all levels in the Hero storyline. To reach the mission, go to where the vehicles are in the Batcave. Go to the far right then down to the bottom. Step on the elevator to go to the memorabilia room. The Wayne Manor mission is in upper left corner.

Get a 'True Villain' rank on all levels in the Villain storyline. To reach the mission, go to right of the Batcomputer. Go down the ramp, and pull the lever to get to the villains. Go through the door on the right, and look in the corner to reach the memorabilia room. Climb the ladder at the top to access the Arkham level.

Successfully complete a level with The Joker. You should then have him in the prison. Go to the experiment room at the prison. Start zapping the Joker Henchmen that keep walking into the room. Zap the villain that follows you every so often. Every time you zap the villain that follows you, the Henchmen will give an increasing number of Studs after they are zapped and killed.

Collect coins in a level to completely fill the 'True Hero' or 'True Villain' bar to get the corresponding rank for that level.

Use the following customizations:
Gloves: Caucasian
Face: Normal Caucasian
Belt: Black
Pants: Black
Arms: Black
Torso: Alfred Pennyworth
Hair: Short black
Weapon: Pistol

This would be on the second level of the Bat Cave. There is a big computer in the middle of the screen above where the outfit changer is where you can enter the codes.
Password - Effect
ZAQ637 - Unlocks Alfred in Free Play
DPP967 - Unlocks Commissioner Gordon in Free Play
XVK541 - Unlocks Free Girl in Free Play
RDT637 - Unlocks Harley Quinn's Hammer Truck
XWP645 - Unlocks more Batarang Targets
BJH782 - Unlocks Penguin Henchman in Free Play
NJL412 - Unlocks Yeti in Free Play

Get a 100% game completion by assembling all Minikits to unlock Ras Al Ghul. Note: You must first spend 4 billion Studs to unlock the last data item after buying all other data items.

Use the following customizations.
Arms: Blue
Belt: Red
Cape: Red
Face: Bruce Wayne
Gloves: Caucasion
Hair: Robin
Pants: Blue
Torso: Plain blue
Weapon: Batarang
Note: To create Supergirl, change the face to a woman's face and change hair to long blonde.

Use the following customizations:
Gloves: Black
Face: Nightwing
Belt: Black
Pants: Red
Arms: Red
Torso: Robin
Hair: Short black
Weapon: Batarang

Enter these codes (provided by the Lego Batman toys at McDonald’s) at the cheat screen to unlock the following:
Password - Effect
BDJ327 - Bruce Wayne - (from Batman Batarang toy)
DDP967 - Commissioner Gordon - (from the Joker Helicopter toy)
XWP645 - More Batarang Targets - (from the Batboat toy)
MVY759 - Nightwing - (from Robin Grappling Hook toy)
KJP748 - Penguin Minion - (from the Penguin Submarine toy)
MAC788 - Police Van - (from the Batmobile toy)
CCB199 - The Joker (Tropical) - (from the Joker Surprise toy)
NJL412 - Yeti - (from Mr. Freeze Ice Blast toy)

Enter one of the following codes at the computer in the Batcave to unlock the corresponding option at the 'Extras' menu. If you entered the code correctly, the name of the cheat will appear.
Result - Code
Extra hearts - ML3KHP
Unknown - XWP645
Unknown - DDP967
Unknown - XVK541
Unknown - RDT637
Unknown - NJL412
Bonus characters. Enter one of the following codes at the computer in the Batcave to unlock the corresponding character:
Character - Code
Bruce Wayne - BDJ327
S.W.A.T. - HTF114
Tropical Joker - CCB199
Yeti - NJL412

Get a 'True Hero' rank on all levels in the Hero storyline. To reach the mission, go to where the vehicles are in the Batcave. Go to the far right, then down to the bottom. Step on the elevator to go to the memorabilia room. The Wayne Manor mission is in upper left corner.

Collect coins to completely fill that bar in a level.

Use the following customizations.
Face: Bruce Wayne
Hair: Short blonde
Gloves: Green
Torso: Orange
Belt: Black or green
Pants: Green
Weapon: Any

Get a 'True Villain' rank on all levels in the Villain storyline. To reach the mission, go to right of the Batcomputer. Go down the ramp and pull the lever to get to the villains. Go through the door on the right and look in the corner to reach the memorabilia room. Climb the ladder at the top to access the Arkham level.

Use the following customizations.
Face: Any
Hat: Red Batman mask
Gloves: Red
Torso: Plain red
Arms: Red
Belt: Red
Pants: Red
Weapon: Batarang

Use the following customizations.
Face: Nightwing
Hat: Ninja mask
Gloves: Black or red
Torso: Plain red
Arms: Red
Belt: Black
Pants: Red
Weapon: Gun

Use the following customizations.
Face: Man-bat
Hat: Short black
Gloves: Black
Torso: Tux with bowtie
Arms: Grey or black
Belt: Black
Pants: Black
Weapon: Batarang

Complete a level with The Joker. You should then have him in the prison. Go to the experiment room at the prison. Start zapping the Joker Henchmen that will keep walking into the room. Zap the villain that follows you every so often. Every time you zap the villain that follows you, the Henchmen will an increasing number of studs after they are zapped and killed.

Use the following customizations.
Face: Robin (African/Black for John Stewart)
Hair: Short brown (Black for John Stewart)
Gloves: White (Black or brown for John Stewart)
Torso: Plain green
Arms: Black
Belt: Green (Black for John Stewart)
Pants: Black
Weapon: Batarang

Use the following customizations.
Arms: Black
Belt: Black
Face: Normal Caucasian
Gloves: Caucasian
Hair: Short black
Pants: Black
Torso: Alfred Pennyworth
Weapon: Pistol

Use the following customizations.
Gloves: Caucasian
Face: Angry
Hair: Long black
Torso: Plain white
Arms: Caucasian
Legs: Blue
Belt: Brown
Weapon: Batarang

Power bricks can be found at the following locations.
An Icy Reception: In the building behind the catwalk after you find the ice cream on the floor. You must glide to it from where you built the grappling grab spot. You will also need to do it in Free Play mode because you need someone who has super strength such as Clayface or Mr. Freeze.
Green Fingers: In the room where you first use your power to grow plants, there is a ledge above the big plant thing. There are iron bars blocking the left passage of this ledge. Blow it open and use Robin in the Attract suit to build a truck with a cake in the back. Bake the cake and the brick will appear. Note: This must be done in Free Play mode.
On The Rocks: In the first room after you come inside, freeze all of the ice cream floats and go across them. Do not mind control the person and raise the level. At the end of the floats is an iron gate. Blow it open and go inside. Go up the ladder and down to where the hanging bars are located. Break the crates, build the switch, cross the bridge, and complete the glass sculpture. Note: This must be done in Free Play mode.
Riddler Makes A Withdrawal: Build a car out of the pieces of the neon light on the side of one of the buildings after you come out of the elevator. Take the car to the area where you build the wrecking ball. In the top right corner is a car compacter. Roll the car in there then mind control the person to pull the second lever. Note: This must be done in Free Play mode.
Two-Face Chase: The power brick is hidden in the final stage of the level where you fight Two-Face. It is in the top left corner of the park on the left and is behind some explosive barrels.
You Can Bank On Batman: Hidden on the left side of the cage that Clayface stands on.

Use the following customizations.
Face: Nightwing
Head: Black ninja mask
Gloves: Black
Arms: Caucasian (Peach color)
Torso: Plain yellow
Belt: Yellow
Pants: Plain black
Weapon: Batarang

Use the following customizations.
Face: Alfred Pennyworth
Hat: Red baseball cap
Gloves: White
Arms: Red
Torso: Plain red
Belt: Blue
Pants: Blue
Weapon: Any
Note: To create Luigi, use the same customizations except change all the red to green.

Use the following customizations.
Face: Bruce Wayne
Hair: Robin
Gloves: Caucasion
Arms: Blue
Torso: Plain blue
Belt: Red
Pants: Blue
Cape: Red
Weapon: Batarang
Note: To create Supergirl, change the face to a woman's face and change hair to long blonde.

Use the following customizations.
Face: Angry (or Bruce Wayne)
Hair: Short black
Gloves: White
Arms: Black
Torso (Shirt): Plain black
Belt: White
Pants: Plain Black
Weapon: Gun

Use the following customizations.
Arms: Red
Belt: Black
Face: Nightwing
Gloves: Black
Hair: Short black
Pants: Red
Torso: Robin
Weapon: Batarang

Get a 'True Hero' rank on all levels in the Hero storyline. To reach the mission, go to where the vehicles are in the Batcave. Go to the far right then down to the bottom. Step on the elevator to go to the memorabilia room. The Wayne Manor mission is in upper left corner.