Pause the game and enable the "Score x2", "Score x4", "Score x6", "Score x8", "Score x10", and the "Always Score Multiplier" cheats in the "Extras" menu. Then, play through all Hero Episodes and almost all the Villain Episodes. You should get 4 billion studs and earn the achievement.
ACHIEVEMENT - HOW TO UNLOCK Hero (25 points) - Beat the first episode - Hero. Super Hero (25 points) - Beat the second episode - Hero. Crusader (25 points) - Beat the third episode - Hero. Villain (25 points) - Beat the first episode - Villain. Super-villain (25 points) - Beat the second episode - Villain. Crime Lord (25 points) - Beat the third episode - Villain. Sidekick (15 points) - Beat a level in co-op. Memorabilia (35 points) - Collect all Memorabilia. League of Assassins (30 points) - Unlock all the Villain characters. Justice League (30 points) - Unlock all the Hero characters. It's the car, right? (30 points) - Unlock all Vehicles (Hero/Villain). 1007 Mountain Drive (30 points) - Beat Wayne Manor bonus level. Unbreakable (30 points) - Finish a level without dying (Character) with no extras. 0000001 00000011 (20 points) - Build the giant LEGO Robot. The city is safe... for now (50 points) - 100% game completion. Cobblepot School of Driving (20 points) - Smash all the cars in the robot level. Vigilante (25 points) - Rescue 25 civilians. Be a Hero (40 points) - Super Hero on every level. Super Builder (20 points) - Build 50 LEGO build-its. Nice Outfit! (20 points) - Collect all suits. Dressed to Impress (20 points) - Get all suit upgrades. The Richest Man in Gotham (40 points) - Max out the stud counter. The Most Dangerous Man on Earth (20 points) - Defeat Joker, Two-Face, Riddler and Catwoman as Batman. Heads I win, tails you lose (20 points) - Defeat 10 goons and 10 police officers with Two-Face in a level. Who needs curiosity? (20 points) - Defeat Catwoman 9 times. Shot to the goon (20 points) - Defeat 8 goons in 8 seconds. Throwing up (20 points) - Throw 50 policemen with superstrength. Atomic Backbreaker (20 points) - As Bane do the Backbreaker on Batman. Oh, I got a live one here! (10 points) - Shock 30 people with Joker's hand buzzer. Kill-a moth (20 points) - Defeat Killer Moth. Smash Gordon (20 points) - Defeat Commissioner Gordon with Harley Quinn's Hammer. Start of something wonderful (15 points) - Shock the Joker with the Joker. Boy Wonder (10 points) - Perform 20 backflips in a row with Robin. Thanks a million (30 points) - Beat Arkham Bonus level. Is it a bird? Is it a plane? (10 points) - Glide for 9 seconds. Gentlemen, start your screaming (15 points) - Knock 5 people into the ground with a vehicle at once. Natural Habitat (10 points) - Smash all street lights in Episode 1 Chapter 1. Make it snappy (20 points) - Build the Croc ride on. The Destroyer of Worlds (15 points) - Destroy 12 objects at once with Bat Bombs. There and back (10 points) - Destroy 10 objects in one Batarang throw. Kiss from a Rose (15 points) - Eat 15 enemies with the Venus ride on. Ice to see you (15 points) - Freeze 50 enemies as Mr. Freeze. Say hello to my little friends (15 points) - Destroy 20 policemen with penguin bombers. Scare Tactics (10 points) - Scare 5 enemies with Scarecrow. Down the rabbit hole (20 points) - Use Mad Hatter's mind control to walk 5 enemies to their deaths. Eat floor... High fiber (15 points) - Slam 20 goons into the floor with Batman.
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 finding 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 face 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 coming 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 enter, then 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 to make the brick appear. Note: This must be done in Free Play mode.
To get easy studs, complete a level with The Joker, and he will then be in the prison. Go to the experiment room in the prison and start zapping the Joker Henchmen that continue to walk into the room. Zap the villain that occasionally follows you. Each time you zap the villain following you, it will increase the number of studs given to you by the henchmen after you kill them.
To unlock the Arkham bonus level, get a "True Villain" rank on all levels in the Villain storyline. To the right of the Batcomputer, pull the lever at the bottom of the ramp. Go through the door on the right. Climb the ladder at the top to reach the Arkham level.
To unlock the Wayne Manor bonus level, get a "True Hero" rank on all levels in the Hero storyline. In the Batcave, go to where the vehicles are.Take the elevator to go to the memorabilia room. The Wayne Manor mission is in the upper left corner.
Unlock the following characters by performing the corresponding tasks:
CHARACTER - HOW TO UNLOCK 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 to create the corresponding characters:
Aquaman (DC Comics) Face - Bruce Wayne Hair - Short blonde Gloves - Green Torso - Orange Belt - Black or green Pants - Green Weapon - Any
Daredevil (Marvel Comics) Face - Any Hat - Red Batman mask Gloves - Red Torso - Plain red Arms - Red Belt - Red Pants - Red Weapon - Batarang
Deadpool (Marvel Comics) Face - Nightwing Hat - Ninja mask Gloves - Black or red Torso - Plain red Arms - Red Belt - Black Pants - Red Weapon - Gun
Dracula Face - Man-bat Hat - Short black Gloves - Black Torso - Tux with bowtie Arms - Grey or black Belt - Black Pants - Black Weapon - Batarang
Green Lantern (Hal Jordan and John Stewart) 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
James Bond Gloves - Caucasian Face - Normal Caucasian Belt - Black Pants - Black Arms - Black Torso - Alfred Pennyworth Hair - Short black Weapon - Pistol
Logan (X-men) Gloves - Caucasian Face - Angry Hair - Long black Torso - Plain white Arms - Caucasian Legs - Blue Belt - Brown Weapon - Batarang
The Punisher (Marvel Comics) Face - Angry (or Bruce Wayne) Hair - Short black Gloves - White Arms - Black Torso (Shirt) - Plain black Belt - White Pants - Plain Black Weapon - Gun
Scorpion (Mortal Kombat series) Face - Nightwing Head - Black ninja mask Gloves - Black Arms - Caucasian (Peach color) Torso - Plain yellow Belt - Yellow Pants - Plain black Weapon - Batarang
Super Mario (Super Mario Bros. series) 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.
Superman (DC Comics) 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.
Tim Drake (Robin III) Gloves - Black Face - Nightwing Belt - Black Pants - Red Arms - Red Torso - Robin Hair - Short black Weapon - Batarang
Unlock the following vehicles by performing the corresponding tasks:
VEHICLE - HOW TO UNLOCK 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"