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.
Complete the final mission.
Complete Wonder Woman vs. Cheetah mission.
Get 3000 amount of Justice League reputation.
Complete Flash's origin mission.
Complete Green Lantern's origin mission.
Complete Aquaman's origin mission.
Complete Aquaman vs. Ocean Master mission
Put Beast Boy underwater and see how he transforms.
Complete Wonder Woman's origin mission.
Complete Superman's origin mission.
Give Lobo something in his favorite color.
Complete Batman's origin mission.
Complete Robin vs. Harley Quinn mission.
Spawn an alternate version of Martian Manhunter.
Spawn an alternate version of Green Lantern.
Complete Superman vs. General Zod mission.
Get 3000 amount of Metropolis reputation.
Complete Flash vs. Zoom mission.
Complete Green Lantern vs. Sinestro mission.
Infect 500 people with undead plague.
Complete Cyborg vs. Deathstroke mission.
Spawn an alternate version of Flash.
Spawn an alternate version of Aquaman.
Complete Superman vs. Lex Luthor mission.
Have Alfred clean a dirty Batmobile.
Give Gizmo something to turn into a weapon.
Complete Batgirl vs Scarecrow mission.
Spawn an alternate version of Wonder Woman.
Spawn an alternate version of Cyborg.
Get 3000 amount of Gotham reputation
Spawn an alternate version of Batman.
Unlock your first costume.
Complete Batman vs. Ra's Al Ghul mission.
Spawn an alternate version of Superman.
Create an object in the Hero Creator.
Spawn something with the Batcomputer.
Complete Batman vs Joker mission.