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