Full list of all 40 Scribblenauts Unmasked: A DC Comics Adventure achievements. It takes around 12-15 hours to unlock all of the achievements on Windows.
Complete 400 heroic feats.
Unlock all costumes.
Spawn 150 different Green Lanterns.
Spawn an alternate version of Green Lantern.
Complete the final mission.
Complete Wonder Woman vs. Cheetah mission.
Complete Aquaman vs. Ocean Master mission
Put Beast Boy underwater and see how he transforms.
Complete Flash's origin mission.
Complete Green Lantern's origin mission.
Complete Aquaman's origin mission.
Complete Superman's origin mission.
Complete Wonder Woman's origin mission.
Complete Batman's origin mission.
Complete Robin vs. Harley Quinn mission.
Complete Flash vs. Zoom mission.
Complete Batgirl vs Scarecrow mission.
Complete Cyborg vs. Deathstroke mission.
Complete Superman vs. General Zod mission.
Complete Batman vs. Ra's Al Ghul mission.
Complete Green Lantern vs. Sinestro mission.
Get 3000 amount of Justice League reputation.
Spawn an alternate version of Flash.
Spawn an alternate version of Cyborg.
Spawn an alternate version of Martian Manhunter.
Spawn an alternate version of Aquaman.
Spawn an alternate version of Wonder Woman.
Infect 500 people with undead plague.
Create an object in the Hero Creator.
Get 3000 amount of Metropolis reputation.
Give Lobo something in his favorite color.
Have Alfred clean a dirty Batmobile.
Give Gizmo something to turn into a weapon.
Unlock your first costume.
Complete Superman vs. Lex Luthor mission.
Get 3000 amount of Gotham reputation
Spawn an alternate version of Superman.
Complete Batman vs Joker mission.
Spawn an alternate version of Batman.
Spawn something with the Batcomputer.