Full list of all 46 LEGO Batman achievements worth 1,000 gamerscore. It takes around 20-25 hours to unlock all of the achievements on Xbox 360.
Complete a level in co-op.
Defeat Joker, Two-Face, Riddler and Catwoman as Batman.
Smash all street lights in Episode 1 Chapter 1.
100% game completion.
Get all suit upgrades.
Complete Wayne Manor bonus level.
Collect all Memorabilia.
Super Hero on every level.
Complete Arkham Bonus level.
Defeat Commissioner Gordon with Harley Quinn's Hammer.
Unlock all the Villain characters.
Rescue 25 civilians.
Max out the stud counter.
Destroy 10 objects in one Batarang throw.
Freeze 50 enemies as Mr. Freeze.
Eat 15 enemies with the Venus ride on .
Unlock all Vehicles (Hero/Villain).
Complete the third episode - Villain.
Smash all the cars in the robot level.
Glide for 9 seconds.
Scare 5 enemies with Scarecrow.
Throw 50 policemen with superstrength.
Use Mad Hatter's mind control to walk 5 enemies to their deaths.
Defeat 10 goons and 10 police officers with Two-Face in a level.
Defeat Catwoman 9 times.
Destroy 20 policemen with penguin bombers.
Shock the Joker with the Joker.
As Bane do the Backbreaker on Batman.
Shock 30 people with Joker's hand buzzer.
Complete the third episode - Hero.
Perform 20 backflips in a row with Robin.
Defeat Killer Moth.
Unlock all the Hero characters.
Complete the second episode - Villain.
Build the Croc ride on.
Complete the second episode - Hero.
Slam 20 goons into the floor with Batman.
Defeat 8 goons in 8 seconds.
Collect all suits.
Destroy 12 objects at once with Bat Bombs.
Complete the first episode - Villain.
Build the giant LEGO Robot.
Knock 5 people into the ground with a vehicle at once.
Complete the first episode - Hero.
Build 50 LEGO build-its.
Finish a level without dying (Character) with no extras.