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